Abstract: The invention features a dual-mode audio system for an automobile which in one mode is configured for play while the doors to the automobile are closed, and in a second mode, is configured for play while a door, such as a tailgate, is opened. Additionally, the invention also features a battery monitor which monitors the operating condition of the battery and may estimate the energy capacity of the battery. The system may also take power conservation measures if the system determines that the engine is not running or the operating condition of the batter reaches a predetermined state. The invention also features a remote control integrated within a key fob for controlling the audio system. The invention features various orientations for mounting a pair of loudspeakers within an automobile which directly radiate sound out of a rear opening of the automobile.

Abstract: A sound generating device having a flexible three-dimensional and substantially planar shaped body including a soft interior encased within a durable exterior covering. A pair of speakers are arranged within the body at first and second locations proximate an upper facing surface. The padded body is adapted to being placed underneath an existing cushion for delivering an audio output, and which is selectively audible to an individual whose head is supported upon the cushion.

Abstract: Disclosed is a garment (102) made of a particular type of material, the garment can include a garment appendage (104, 108, 110, 112) and a sensor (114, 116) coupled to the garment appendage with the sensor configured to detect activation of the garment appendage. The garment can further include a controller (126) coupled to the sensor, with the controller configured to control a function of an electronic device based on activation of the garment appendage when sensed by the sensor. Also disclosed is a method of a garment as described above, the method including activating the garment appendage so that the sensor detects the activation, and processing a signal from the sensor by the controller to that the controller controls a function of the electronic device.

Abstract: This invention is a hat specially configured to carry earphones and a music player equipped with or without an attachment clip. The hat comprises slit-like button-hole openings and grooves in the bill into which the music player clip can be attached, as well as elastic retaining straps to affix the music player and the earphones. Button holes on the hat's surface form together with the headband a conduit that allow the passage, from outside to the inside, of the electrical cables connecting the music player to the earphones. The seam between the headband and the hat is open above the ears of the wearer to allow the retrieval or stowing away of the earphones. The invention also covers a method of listening to music at the option of the user without obstructing surrounding sound by keeping the earphones stowed away in the retaining area formed by the headband.

Abstract: A headphone pillow includes a support portion. The support portion is flexible and has a first end and a second end. A first pillow portion has a first pillow ear portion connected to the first end of the support portion. The first pillow portion has a first pillow receive portion. A second pillow portion has a second pillow ear portion connected to the second end of the support portion. The second pillow portion has a second pillow receive portion. The first pillow portion and the second pillow portion each have a release mechanism. The first pillow ear portion and the second pillow ear portion each have a first side and a second side. The second side of either the first pillow ear portion or the second pillow ear portion is independently removably connected to either the first pillow receive portion or the second pillow receive portion.

Abstract: An apparatus, system, and method for an entertainment chair provide a high fidelity audio system incorporated in an entertainment chair. The entertainment chair is relatively independent from an acoustical environment in which it is placed, and enables repeatable high fidelity sound with a wide variety of recording types and qualities. The entertainment chair has high transparency and excellent imaging. Mid-range speakers and/or tweeters are placed in or near the armrests, forward of the seat occupant, and are oriented to face inward and upward. In one embodiment the mid-range and/or tweeters also angle rearward. A subwoofer is placed in the backrest and a shaker is placed in the seat bottom. The subwoofer and shaker are separately tunable through a control panel ergonomically placed at a forward end of an arm rest. The control panel includes a universal iPod dock. Other inputs may also be connected to the entertainment chair.

Abstract: The present invention provides for various embodiments of a combined garment and earphones. The combined garment and earphones includes a garment having a series of elongate internal passageways. Partially enclosed within the series of elongate internal passageways is a conductive wire assembly. The conductive wire assembly includes a first length of wire leading to at least one earpiece having a transducer for emitting audio into a user's ear, and a second length of wire leading to a connector configured to be communicatively coupled to an audio device. Finally, a retractable dial is coupled to the garment, wherein a portion of the conductive wire assembly travels through the retractable dial. The retractable dial is configured to selectively retract at least a portion of the first end of the conductive wire assembly.

Abstract: An embodiment of a baseball style cap and stereo combination having a crown, a brim/bill, a sweatband, and two amplified stereo speakers concealed within the brim/bill is disclosed. The baseball-style cap combination further includes a battery holder/forehead cushion housing a battery holder concealed within an inner surface of the baseball-style cap combination by a flap. Also included are wires connecting the battery holder to an amplifier concealed within the sweatband and wires connecting the amplifier to the speakers. A stereophonic music generator sends a music signal which is provided to the amplifier by any suitable means of communication, like an audio cord or wireless by means of infrared or Bluetooth wireless technology.

Abstract: An audio reproduction system includes: a first speaker arranged near a listener and behind a head of the listener with a speaker unit being held by first holding means to make it possible to mix sounds emitted from front and rear of a vibration plate of the speaker; second and third speakers held by second holding means and arranged near the listener and on left and right of the first speaker; separating means for separating and obtaining low-frequency components and medium- and high-frequency components for left and right channels from an input audio signal; means for supplying the low-frequency components separated by the separating means to the first speaker; and means for supplying the medium- and high-frequency components for the left and right channels separated by the separating means to the second and third speakers.

Abstract: The personal wearable speaker system includes a backpack having a plurality of substantially hollow tubular ducts formed from a substantially flexible material designed to promote superior sound wave flow and anti-collapse (pinch) functionality, and a plurality of pairs of sound transducers.

Abstract: A headgear assembly is provided with an integrated music or other sound player supportable therein. The headgear assembly includes a headband or cap with pouches therein for various portions of the music player. In particular, a left speaker pouch is provided for a left speaker, a right speaker pouch is provided for a right speaker and a player pouch is provided for a sound player. A wire harness is also provided to preferably removably attach the speakers to the sound player. The headband or cap with the pouches therein holds the player and speakers directly adjacent a head of the user, and with the speakers directly over ears of the user. Controls on the player are accessed through a window in an outer panel of the headband or cap to allow user access. The player, wire harness and speakers are all substantially concealed within the headgear assembly.

Abstract: The invention discloses differing embodiments of pillow speaker systems and methods. In one embodiment, a method is disclosed of directing sound energy emitted from a speaker substantially into a cavity of a gas pillow. In other embodiments, pillow speaker systems are disclosed which direct sound energy emitted from the speakers substantially into the gas pillow cavity.

Abstract: A sound generating device having a flexible three-dimensional and substantially planar shaped body including a soft interior encased within a durable exterior covering. A pair of speakers are arranged within the body at first and second locations proximate an upper facing surface. The padded body is adapted to being, placed underneath an existing cushion for delivering an audio output, and which is selectively audible to an individual whose head is supported upon the cushion.

Abstract: A speaker system, preferably for a large-screen TV includes: a horizontal member including a left speaker, a right speaker and a center speaker and functioning as an enclosure for the left speaker, the right speaker and the center speaker, wherein each of the speakers includes at least one speaker element, and centers of the speaker elements of the speakers are all aligned along a single horizontal line; and a leg for holding the horizontal member in a horizontal position.

Abstract: A frame has an interior side and an exterior side. The frame is configured to extend around the back of a user's head. A first membrane is coupled to at least a portion of the interior side of the frame. In one embodiment, a second membrane is coupled to the first membrane. The first membrane and the second membrane define a receptacle and an opening that communicates with the receptacle. In one embodiment, a speaker is disposed in the receptacle. A first electrical wire has a first end electrically coupled to the speaker and a second end including a connector. The connector can be disposed proximate to the opening of the receptacle. The connector is configured to be electrically coupled to a second electrical wire.

Abstract: A thin film capacitor includes a pair of electrodes and a dielectric layer having piezoelectricity sandwiched therebetween. The phase characteristic of an impedance resulting from application of a voltage to the pair of electrodes peaks periodically according to a frequency of a signal to be inputted or outputted. The frequency of the signal is adjusted to fall in between the values representing the adjacent peaks. Since there are periodic peak values that depend upon the frequency of the inputted or outputted signal, in fabricating a band-pass filter, a higher attenuation can be attained by ensuring that the peak value stands at a low-frequency level. Thus, a higher attenuation can be attained at low frequencies without sacrificing the band-pass characteristic, whereby making it possible to produce a band-pass filter that is excellent in band-pass characteristic.

Abstract: An entertainment and pacification system for use with a child car seat has speakers mounted in the child car seat with a plurality of audio sources and an anti-noise audio system coupled to the child car seat. A controllable switching system provides for, at any given time, the selective activation of i) one of the audio sources such that the audio signal generated thereby is coupled to one or more of the speakers, and ii) the anti-noise audio system such that an ambient-noise-canceling audio signal generated thereby is coupled to one or more of the speakers. The controllable switching system can receive commands generated at one of first controls located at the child car seat and second controls located remotely with respect to the child car seat with commands generated by the second controls overriding commands generated by the first controls.

Abstract: The personal wearable speaker system includes a garment having a plurality of substantially hollow tubular ducts formed from a substantially flexible material designed to promote superior sound wave flow and anti-collapse (pinch) functionality, and a plurality of pairs of sound transducers. The plurality of ducts each have a first end and a second end which are substantially enclosed by the garment. Each of the ducts defines a chamber within. The ducts each have a length, a width, and a height which is perpendicular to both the length and the width, and preferably have a width to height ratio of three to one or less. Alternately, the ducts may be substantially flat and have an undulating front surface. Sound transducers are adapted to fit at least partially within the chambers of the ducts. Some of the sound transducers are adapted to project sound toward an ear of a wearer. Other transducers are adapted to project soundwaves toward a body of the wearer.

Abstract: An embedded multimedia speaker structure includes a five-facet housing having a same dimension as that of a 5-and-¼-inch disk drive; a recess disposed at a bottom center portion of the housing; a bass speaker disposed at the recess and having a bell thereof facing downward; a circuit board having play function disposed at an rear end of an interior of the housing and for controlling sounds; a panel enclosing a front end of the housing, and having a speaker provided at two sides thereof, respectively; and two sound guide tubes having an end thereof connected to a rear end of the speakers, respectively, and the other end thereof arranged to an exterior of the housing, respectively. Using the aforesaid structure, a multimedia speaker is assembled for disposing within a 5-and-¼-inch disk drive housing.

Abstract: A flat piezo-film speaker is mounted in a motorcycle helmet. The flat-piezo film speaker is formed from a flat piezo-film curved in one direction to form at least one curved portion. A radius R of curvature at the curved portion is larger than at least 200 mm, preferably, in a range of 210 mm?R?360 mm. The piezo-film speaker built into a helmet for a motorcycle rider is capable of reproducing sound at a sound pressure sufficiently audible even when running the motorcycle and at a high tone quality.

Abstract: A musical garment has a plurality of interior pockets disposed on two interior portions of the garment for generating extemporaneous music by hand-impact with a selective pocket portion. Each interior pocket is secured via hook and loop fasteners and includes a sound generating piezoelectric transducer electrically connected thereto for producing multiple signals to a sound generating module. The piezoelectric transducers are sensitized or calibrated to produce a sound having a different sound characteristic compared with other piezoelectric transducers. The sound generating module is removably housed within an interior auxiliary pocket of the garment and utilizes a multiplexer to provide serial output or music for subsequent recording or listening. An acoustic screen is disposed on an exterior surface portion of the garment pocket for acoustically transmitting sound generated from the module.

Abstract: A personal amplification sound system includes a microphone adapted to receive a sound and convert the sound into an original source signal, and an amplifier in operable communication with the microphone and adapted to receive the original source signal from the microphone and amplify the original source signal, thereby resulting in an amplified signal. The personal amplification sound system also includes at least one speaker in operable communication with the amplifier and adapted to receive the amplified signal from the amplifier, and an article of clothing adapted to the worn by a user, and that houses the amplifier and the at least one speaker therein.

Abstract: A hearing enhancement system that enhances a user's hearing based on a directional speaker is disclosed. In one embodiment, the system can include an interface unit that has a directional speaker and a microphone. The microphone captures input audio signals that are transformed into ultrasonic signals. The speaker transmits the ultrasonic signals, which are transformed into output audio signals by interaction with air. At least a portion of the output audio signals are modified to enhance the hearing of the user. Based on the system, the user's ear remains free from any inserted objects and thus is free from annoying occlusion effects. Compared to existing hearing aids, the system is relatively inexpensive. In another embodiment, the system can also be used as a phone. In yet another embodiment, the system can also access audio signals from other portable or non-portable instruments, wired or wirelessly, such as from home entertainment units, phones, microphones at a conference or speakers at a movie theater.

Abstract: This invention involves a wearable computer having computer components movably located in a collar that the user wears around his or her neck. The computer components can be a display or monitor, or a microphone or any other computer component.

Abstract: A portable microphone unit for use in wireless transmission communication system is disclosed where the microphone unit includes a housing for containing at least one, but usually two or more, microphones for receiving a speaker's voice, coupled with IR, RF, or other types of signal emitters, wherein the microphone housing is attached at a free end of wearing element, made from a flexible or inflexible material. The wearing element is either shaped to sit on the speaker's body, such as around his neck, and place the microphone before the speaker's face and mouth or is made from a flexible material that may be bent into a desirable position. The microphones are situated with appropriate angles in between, thereby allowing the speaker to turn his head from side to side and still maintain a significant sound pressure level towards at least one microphone and achieve a strong signal.

Abstract: A garment comprises a fabric shell (10) to which a number of electronic devices (12, 14) are removably attached, suitably in respective pockets (16,18). Linking the devices (12, 14) are a pair of electrical conductors (20, 22) with a fabric cover (24) over at least a part of their length. The fabric shell (10) and fabric cover (24) are provided with complementary connectors such as press-studs (26) to enable the fabric cover (24) and conductors (20, 22) to be attached to the garment, and easily removed therefrom for upgrades and/or cleaning of the garment.

Abstract: The object of the present invention is to provide an acoustic vibration system with a speaker for air mattresses. This vibration system includes an air mattress (20) consisting of a sealed body and inflated with air. One or more speakers (30) are mounted on the sealed body of the mattress, and are connected to an external audio system (31). The speakers (30) thus convert electrical energy outputted from the audio system (31) into sound energy, and radiate the sound energy into air inside the mattress (20), thus acoustically vibrating the mattress. In the vibration system, the sealed body of the mattress is made of a three-dimensional woven fabric (1) such that the sealed body has a desired durability and effectively resists expansion pressure. A coated layer is formed on the internal surface of the woven fabric (1) so as to prevent a flow of air through the fabric.

Abstract: At least one flexible element (1, 32, 33a, 33b) which converts a mechanical pressure change into an electrical voltage variation (microphone) or an electrical voltage variation into a mechanical pressure change (loudspeaker) is connected to the fabric of items of clothing (30, 300). Furthermore, the flexible element (1, 32, 33a, 33b) is connected, by means of a wire or without, to an audio signal source (31) and/or an audio signal sink (31) which are associated with the item of clothing (30, 300) or integrated into the same (30, 300).

Abstract: A passenger seat with built-in speakers having a headrest and a pair of flaps located adjacent the headrest. The flaps are freely movable with respect to the headrest and provided with built-in speakers. The passenger seat with built-in speakers has a detector which detects a predetermined anglular position of the flap with respect to the headrest.

Abstract: A portable audio system allowing simultaneous listening and/or audio communication by multiple individuals to a personal electronic device such as a CD player, tape player, radio, or cellular or wireless telephone. The audio system includes a personal electronic device, a transmitter in wireless communication with a plurality of wearable audio speakers and a power supply. Alternately, a hardwired connection between the transmitter and the plurality of speakers may be employed.

Abstract: A method and apparatus is disclosed where a musical system is integrated with an outdoor seating apparatus, such that a user may rest comfortably while listening to music. The musical system is designed to withstand outdoor weather conditions. The musical system, typically a radio, is integrated with the backrest portion of the seating apparatus. The radio is designed to function in both extreme hot and cold temperatures. The radio also features RCA inputs, so that external signal inputs may be played on the radio's speakers. A cellular modem and interface is present so that a computer can connect to the Internet. An adapter is also present so a cell phone can connect to the radio, and use the radio's speakers. The speakers can be magnetic coil based, or may use flat panel speaker technology.

Abstract: A device (8) which includes an electroacoustic transducer (7) for the acoustic reproduction of sound signals to an ear (14) of a user (2) who assumes a user position at the device. The transducer is optimized for the acoustic reproduction of speech-signal sound waves and is equipped with arrangement means (25) for realizing a distinct directivity for the speech-signal sound waves emitted by the transducer. As a result of its directivity, the transducer directs the speech-signal sound waves which it emits preferentially to the ear of a user who is in the user posture.

Abstract: A musical garment has a plurality of interior pockets disposed on two interior portions of the garment for generating extemporaneous music by hand-impact with a selective pocket portion. Each interior pocket is secured via hook and loop fasteners and includes a sound generating piezoelectric transducer electrically connected thereto for producing multiple signals to a sound generating module. The piezoelectric transducers are sensitized or calibrated to produce a sound having a different sound characteristic compared with other piezoelectric transducers. The sound generating module is removably housed within an interior auxiliary pocket of the garment and utilizes a multiplexer to provide serial output or music for subsequent recording or listening. An acoustic screen is disposed on an exterior surface portion of the garment pocket for acoustically transmitting sound generated from the module. A set of auxiliary piezoelectric transducers are also used for attachment to a user's feet for foot generated sound.

Abstract: Disclosed are an outer mirror and a vehicle interphone having a function of transmitting a sound to the outside from a vehicle cabin or inputting a sound outside of the cabin, and having physical durability. The sound in the cabin is transmitted from a microphone-loudspeaker provided in a visor cover of the outer mirror. The sound near the visor cover, which is received by the microphone-loudspeaker, is emitted in the cabin. The microphone-loudspeaker is supported on a frame having higher rigidity than the visor cover, which is mounted to a vehicle body via an electric accommodating unit and a door mirror base.

Abstract: An assembleable recording and playback device for assembly and cooperative engagement in combination with a display unit for gifts such as vase providing a more personalized presentation for flowers and gifts from givers to receiving parties. The device features a plurality of recording and playback units which cooperatively engage with a plurality of different functional and ornamental display units such as vases and gift boxes. From a remote location, a person may call and record a personal message which is placed on the appropriate recording and playing device which is then cooperatively engaged with the appropriate ornamental display unit such as a vase. The assembled device can then be delivered with flowers or their gift anywhere in the world on the same day it is ordered with the personal message which plays when a drawer is opened.

Abstract: The present invention is a developmental device for use during and after pregnancy and comprises an elongated, elasticized belt, having a soft, looped fabric on both sides. The developmental device also comprises at least one speaker disposed within the belt. A playback device selectively attaches to the belt and is in electronic communication with the speaker. The playback device further comprises at least one preprogrammed microchip for transmitting an electrical signal to the speakers. A recordable microchip may also be included in the playback device to record a personalized message for the unborn child.

Abstract: An audio strap of speakers for playing audio information originating from an audio playback device is disclosed. The audio strap comprises a strap preferably made of material responsive to audio waves by way of resonating, and an array of speakers deployed on said strap. The array of speakers is divided into at least one of a plurality of separate groups of speakers, each group of speakers consisting of one or more speakers, the group separately electrically connected to a connector adapted to be plugged to an audio output socket of the audio playback device. Each group receives a separate electric signal from a separate channel of the audio playback device and produces an audio signal corresponding to the electric signal. When the speakers generate audio waves the strap resonates thus enhancing the sound of the speakers.

Abstract: A backpack entertainment system with detachable speaker pockets is provided. The speaker pockets can be detached from the backpack and positioned separately therefrom to provide an enhanced stereo sound quality and/or ambience. Audio equipment within the backpack is connected to the speakers. The speaker pockets preferably comprise canvas or other like material, and can be quickly and easily attached to and detached from the backpack by zippers or other similar means.

Abstract: A cordless digital audio headphone is disclosed. The headphone includes a pair of earphones connected to a headband. The earphones provide audible signals. The headphone also includes a memory slot positioned on the headband for receiving a memory card containing digitally stored audio information. A processor is disposed on the headband, and is coupled to the memory slot for retrieving the digitally stored audio information from the memory card. An analog to digital converter receives the digitally stored audio information, and provides the audible signal to the earphones.

Abstract: A method and apparatus is disclosed where a musical system is integrated with an outdoor seating apparatus, such that a user may rest comfortably while listening to music. The musical system is designed to withstand outdoor weather conditions. The musical system, typically a radio, is integrated with the backrest portion of the seating apparatus. The radio is designed to function in both extreme hot and cold temperatures. The radio also features RCA inputs, so that external signal inputs may be played on the radio's speakers. A cellular modem and interface is present so that a computer can connect to the Internet. An adapter is also present so a cell phone can connect to the radio, and use the radio's speakers. The speakers can be magnetic coil based, or may use flat panel speaker technology.

Abstract: A wearable personal audio system to audibly deliver audio information, even at a low volume level, to the wearer. The system includes an audio unit, and at least one miniature speaker, that are located within and suitably fixed to the article of clothing so as to be supported in an unseen manner. Each speaker is operatively coupled to the audio unit to enable audio information from the audio unit to be audibly delivered to the wearer via the speakers.

Abstract: An invisible speaker applied in an electric equipment is disclosed. The invisible speaker includes a transparent device disposed on a body of the electric equipment and having a transparent portion for a vision face of the electric equipment, wherein the transparent device is a distributed acoustic radiator for sending out a sound, and a first transducer connected to the transparent device for vibrating the transparent device to send out the sound.

Abstract: A light weight fully assembled speaker enclosure is provided that includes a backbox having a peripheral edge; a grill that is crimped around the peripheral edge of the backbox, and a sound-baffle sheet disposed between the backbox and the grill, the sound-baffle sheet having an opening for placement of a speaker. Also provided is a speaker system having an audio speaker; a backbox having a peripheral edge; a grill that is crimped around the peripheral edge of the backbox and that is affixed to the speaker; and a sound-baffle sheet disposed between the backbox and the grill, the sound-baffle sheet having an opening for placement of the speaker.

Abstract: An audio speaker for incorporation into garments, upholstery etc., has a diaphragm (10) and connecting wires (18) or switch (48), and a concave cover (20 or 44) made of a heat molded textile having a ceramic textile covering. The speaker is attached by stitching (16) to an aperture (12) in a piece of conventional textile (14), for easy incorporation into a garment. The speaker may be sewn into the hood of a sports garment (FIG. 2), or may be attached by the switch to a conducting area within a concave area of a garment such as a dress (FIGS. 3 & 4).

Abstract: In a garment which can receive a printed circuit board having a sound synthetic chip (10), a sound outputting element (12), a switch (14), a battery (15) and the like mounted on the printed circuit board (20) and which is capable of outputting a sound or breaking the output of the sound by operating the switch (14), said garment comprises a button exposing hole (32) for exposing at least a portion of the button (14a) of said switch (14) and said sound outputting element (12) in front of it; and a moisture-proof paper (70) being positioned between an inner surface of said non-woven fabric pocket (30) and an rear surface of said printed circuit board (20).

Abstract: A vest garment is provided for audio stimulation of a fetus by a birth mother includes a back and a left and a right bodice. The left and right bodice are stitched to the back along the sides and over the shoulders so that arms may be passed through an armhole opening defined by the back and each bodice. One bodice includes an audio speaker pocket strategically positioned over the stomach. The other bodice includes an audio signal source pocket which need not be strategically positioned, but which is arranged so as to counterbalance the weight of the speakers in the speaker pocket. An optional microphone input to the audio source signal pocket is provided as are supplemental headphones for the mother.

Abstract: A portable collapsible seat with an advanced five-driver integral audio system is disclosed. The seat is designed to be used in conjunction with a video screen to create an enhanced "virtual reality" environment. The placement of the drivers relative to the user's head, combined with the intentionally different bandwidths of sound produced by the different drivers, and the relative acoustical intensities of the drivers produces psychologically "gripping" effect, designed to transport the user away from the reality of the actual surroundings and into the virtual reality of the video presentation. One of the drivers is intentionally oriented and positioned to provide tactilly perceivable vibration through the seat to the user.

Abstract: The invention is a pillow speaker for use as a combination headrest and sound delivery system for transmitting sounds, including music to a person's head. The pillow speaker comprises a pillow headrest having an upper surface for receiving and supporting a person's head. Extending downward from the upper surface is a lower body portion. The lower body portion is adapted for support from an exterior stable surface, the pillow speaker being constructed from a homogeneous flexible material. A pair of spaced apart loud speakers are mounted through the upper surface, within the lower body portion. The loud speakers include an exterior face for projecting sound outward from the pillow speaker, and an opposing rear face for projecting sound into and through the lower body portion.

Abstract: A garment comprises a sound chip permanently affixed thereto. The sound chip includes a rigid platform and a speaker coupled to the rigid platform. A control circuit is coupled to the speaker for producing and transmitting to the speaker a stored signal corresponding to a pre-recorded sound pattern to be reproduced by the speaker. The control circuit and the speaker are then surrounded by a water-tight outer casing.

Abstract: A system for mounting a picture projection screen between two upright floor-standing speaker units in which the picture screen can be drawn out from one of the speaker units and extended to and attached to the other speaker unit in one position and retracted back into the first speaker unit in another position includes a winding system arranged in the one speaker unit and an attaching system for attaching the free end of the screen in the other speaker unit. The winding system and the attaching system can be arranged to be repositioned so that at top edge of the screen is above the upper surfaces of the speaker units so as to provide access to electronic equipment arranged at a lower level between the two speaker units.