Abstract: The present invention relates to electromagnetically-shielded speaker (or microphone) systems for generating acoustic sounds (or electric signals) based upon electric signals (or acoustic sounds) supplied thereto while minimizing irradiation of undesirable electromagnetic waves. More particularly, the present invention relates to various speaker systems each of which has at least one source for emitting the undesirable waves and at least one counter member for emitting counter electromagnetic waves capable of canceling at least a substantial portion of the undesirable waves due to their phase characteristics. The present invention instead relates to various speaker systems each of which has at least one electric and/or magnetic shields capable of shielding and/or terminating electric waves and magnetic waves of the undesirable waves, respectively.

Abstract: A bobbin includes a carbon nanotube film structure and an amorphous carbon structure. The carbon nanotube film structure defines a number of micropores therein. The amorphous carbon structure is composited with the carbon nanotube structure. The amorphous carbon structure comprises a number of amorphous carbon particles received in the micropores.

Abstract: A portable sound box includes a main body and a clip. The main body includes a battery for supplying power to the portable sound box. Thus, the portable sound box can supply power on its own. The clip is fixed to the main body and configured for clipping to an external object. Thus, the portable sound box can attached to the external object instead of standing on a surface.

Abstract: A frame has a slide hole and a receiving hole made close to an end of the slide hole. A terminal member has a protrusion protruding from a face making contact with the speaker frame, and a claw projecting in a direction approximately perpendicular to a protruding direction of the protrusion. An approximate-projection-shaped engaging portion is formed on the claw to engage with the receiving hole made close to the end of the slide hole. For example, when the terminal member is mounted on the frame, the protrusion is inserted into the slide hole and then slid along the slide hole, thereupon the engaging portion formed on the claw engages with the receiving hole, whereby the terminal member is fixedly attached to the speaker frame.

Abstract: An electrical apparatus includes a frame, a speaker connected to the frame, a digital signal processor in communication with the speaker to receive audio data and control data to control the speaker, the digital signal processor connected to the frame, and a lamp base coupler electrically connected to the speaker and receiver, the lamp base coupler detachably connectable to a power source, when the power source is present. A method of steering the diffused sound field includes, broadcasting at least one calibration audio signal through a plurality of speakers (M) in an audio system, receiving the calibration audio signal in a plurality of microphones spaced apart and positioned about at a listening position, and calculating respective relative speaker placement angles relative to the listening position between each of the plurality of speakers in response to receipt of the calibration audio signal in the plurality of microphones.

Abstract: A loudspeaker includes a frame, a magnetic circuit, a voice coil bobbin and a voice coil. The magnetic circuit defines a magnetic gap. The frame is mounted on a side of the magnetic circuit. The voice coil bobbin is received in the magnetic gap. The voice coil is wound around the voice coil bobbin. The voice coil includes a lead wire. The lead wire includes a linear carbon nanotube structure and an insulated layer. The insulated layer is coated on the linear carbon nanotube structure.

Abstract: A loudspeaker includes a frame, a diaphragm, a magnetic circuit, a voice coil bobbin and a voice coil. The frame is mounted on a side of the magnetic circuit. The frame has an opening end. The diaphragm has an inner rim and an outer rim. The outer rim of the diaphragm is fixed to the opening end of the frame. The inner rim of the diaphragm is fixed to an end of the voice coil bobbin. The magnetic circuit defines a magnetic gap. The voice coil bobbin is disposed in the magnetic gap. The voice coil is wound around the voice coil bobbin. The voice coil includes a lead wire. The lead wire includes a conductive core and an insulated layer. The insulated layer is coated on the conductive core. The conductive core includes a linear carbon nanotube structure and a wire structure contacting each other.

Abstract: A loudspeaker includes a frame, a magnetic circuit, a voice coil bobbin, and a voice coil. The frame is mounted on a side of the magnetic circuit. The magnetic circuit defines a magnetic gap. The voice coil bobbin is disposed in the magnetic gap. The voice coil is wound around the voice coil bobbin. The voice coil bobbin includes a carbon nanotube layer structure. The carbon nanotube layer structure includes a plurality of carbon nanotubes.

Abstract: A loudspeaker includes a magnetic system defining a magnetic gap, a vibrating system, and a supporting system. The vibrating system includes a diaphragm, a voice coil bobbin disposed in the magnetic gap, a coil lead wire having a first end and a second end, and a voice coil wound around the voice coil bobbin and electrically connected to the first end. The supporting system includes a frame fixed to the magnetic system and receiving the vibrating system. The frame has a terminal electrically connected to the second end of the coil lead wire. The diaphragm is received in the frame. The voice lead wire includes at least one carbon nanotube wire structure. The carbon nanotube wire structure includes a plurality of carbon nanotubes.

Abstract: A microphone-shaped speaker device preferably for use by children, teenagers, young adults and even adults for leisure and fun. The microphone shaped device can be electrically connected and appear to be a regular microphone for receipt of lyrics of a song or a voice for playing through and out of a speaker but, in fact, it necessarily is also an audio speaker, located at or adjacent to the mouth of the entertainer. The device is connected to a source of audio, digital or analog, signals of the voices of pre-recorded entertainers. In this manner, an extremely realistic effect/illusion is provided, the user seems to be singing (when suitably lip synched to the lyrics of the pre-recorded songs), with the voice, tone, harmony, melody, etc. of the professional singer.

Abstract: A wireless speaker may include a housing comprising a networking module configured to receive a signal from an audio source, a power amplifier configured to amplify the signal, and at least one speaker configured to translate the electrical signal into an acoustic wave. The wireless speaker may also include at least one electrical connector configured to be electrically and mechanically coupled to a power source, such as an AC outlet. The electrical connector may be configured to orientate the wireless speaker in various positions relative to wall and may be configured to allow the wireless speaker to pivot or rotate relative to the wall. The wireless speaker may also include at least one light source configured to illuminate at least a portion of the speaker membrane.

Abstract: A speaker includes an audio transducer and a coupling that provides both an electrical connection and a mechanical support function. In some embodiments, the coupling is a light bulb screw base. In other embodiments, standard parallel power input blades can be utilized. With this design, an audio distribution system requiring no specialized audio signal cabling may be constructed.

Abstract: The disclosure relates to the use of magnets, which may be permanent magnets or electromagnets, to align and physically connect two adjacent audio components, or similar electronic components. Alternatively, a groove or similar mechanical aligning configuration may be used in combination with the magnetic configuration.

Abstract: An electrostatic speaker system including at least one electrostatic speaker element having a pair of stators and a diaphragm therebetween, each of the stators and the diaphragm having an least one electrically conductive portion. The conductive portion of the diaphragm is patterned as a mesh, which may include gaps, and a conforming layer overlying the conducting portion of the diaphragm and disposed so as to cover gaps in the mesh. A speaker drive circuit provides soft clipping of the audio input signal so that the audio signal applied between the diaphragm and the stators does not exceed the maximum acceptable level that can be applied between the diaphragm and the stators of at least one speaker element.

Abstract: A speaker device includes a terminal member, a voice coil bobbin, and a connecting member mounted on the voice coil bobbin. The connecting member has a terminal mounting part. A pair of claw part and hook-shaped projecting part is provided on an upper end portion of the terminal mounting part, and a mounting base having a groove is provided on a lower end portion thereof. A projecting part and an opening are provided at the upper end portion of the terminal member, and a mounting part is provided at the lower end portion thereof. The projecting part has a function to move the upper end portion of the terminal member to a circumferential direction of the connecting member.

Abstract: The systems and methods described herein relate to, among other things, a transducer capable of producing acoustic and tactile stimulation. The transducer includes a rigid mass element disposed on the diaphragm of a speaker. The mass element may optionally be removable and may have a mass selected such that the resonant frequency of the transducer falls within the range of frequencies present in an input electrical audio signal. The systems and methods advantageously benefits from both the fidelity and audio performance of a full-range speaker while simultaneously producing high-fidelity, adjustable and palpable haptic vibrations.

Abstract: Electronic devices such as compact portable media players are provided. A housing for an electronic device may be relatively compact. The housing may include a door assembly with an attached spring-loaded clip. The electronic device may include a hold switch. Depending on the state of the hold switch, the electronic device may be in an off mode, a continuous playback mode, or a shuffle playback mode. The electronic device may not have integrated media playback controls such as play, pause, rewind, fast forward, etc. As one example, the electronic device may connect to an accessory that has media playback controls. Buttons and other user interfaces may be included in the accessory and user input information may be conveyed between the accessory and the electronic device using a wired path including audio connectors. The electronic device may include a printed circuit board assembly that is nested together with a battery assembly.

Abstract: A portable electronic device includes a processor provided in a housing, a jack being sized for receiving a plug of an audio accessory and having electrical connectors for enabling communication between the audio accessory and the processor, the electrical connectors for contacting corresponding electrical connectors of the plug and a switching circuit in communication with the processor and the electrical connectors, the switching circuit for determining a pin-out of the plug and routing audio signals between ungrounded ones of the corresponding electrical connectors of the plug and the processor.

Abstract: An electronic device manufactured by molding according to an aspect of the invention may include a driving unit supplying a signal upon being pressed and then returning to its original state; a board having the driving unit mounted thereon; a driving unit mold casing unit molded with the driving unit from a resin material such that the driving unit can be driven; and a casing molding unit molded to completely cover the board, together with the driving unit mold casing unit, to form the outer appearance.

Abstract: [Problems] To provide a multifunction vibration actuator which has flat rising and falling frequency characteristic at the time of generation of bodily sensation vibration and which is stable for an input signal. [Means for Solving Problems] Flat frequency characteristics can be obtained by using a two-fold rotational symmetry frame type suspension, and miniaturization of the whole multifunction vibration actuator can be made by the user of the frame type suspension. With regard to the frame type suspension, use of protruded configuration of corner parts ensures the effect of absorption of deflection of the suspension.

Abstract: A thin loudspeaker system has at least one contoured passive radiator enclosure outside the main unit, connected with at least one loudspeaker enclosure inside the main unit through at least one transmission line. The transmission line cross-sectional shape may be a circular, rounded rectangular, ovular, elliptical or any other suitable shape. With this method the diaphragm size of the contoured passive radiator may be as large as possible, without changing the thickness of main unit. The larger-sized passive radiator diaphragm may increase the air movement and as a result may increase sound pressure level (SPL) at low frequencies. This system may reduce the thickness of audio video equipment significantly and may be useful for producing deeper bass at low frequencies with less distortion, for thin equipment such as LCD TVs, plasma TVs, thin audio hi-fi system, car loudspeaker system, and other similar systems.

Abstract: In a speaker device, cutting wiring electrically connected to a conductive wire of an electronic component and a voice coil, and the conductive wire and the wiring are electrically connected without a speaker terminal lug. The speaker device includes wiring electrically connected to the voice coil, an electronic component having a component wire, and a frame. The frame has a conductive wire fixing part for fixing the conductive wire, and the conductive wire is fixed to the conductive wire fixing part to be directly connected to the wiring. Thereby, even if a vibration is transmitted to the frame at the time of driving the speaker device, the conductive wire never vibrates, and the conductive wire does not pull the wiring. Therefore, the conductive wire and wiring are not cut. Also, since the conductive wire is the speaker terminal lug, cost of the speaker device can be reduced.

Abstract: A representative base unit for charging a remote controller and a multimedia device includes at least two docking stations for a remote controller and a multimedia device, wherein the at least two docking stations having charging slots that transfer power to the remote controller and the multimedia device for recharging; and a processing device that is electrically coupled to the docking stations for communicating with the remote controller and the multimedia device, wherein the processing device facilitates communication between the remote controller and the multimedia device.

Abstract: An acoustic transducer unit includes a first member having a recess, and a plate-like second member having main surfaces. The second member is bonded to the first member so as to cover the recess and form a housing. A microphone element, which is an acoustic transducer, is accommodated in an internal space of the housing, and an acoustic path is provided between the internal space and an external space of the housing. A conductive electromagnetic-shielding member and terminal members for electrically connecting the microphone element and an external circuit are embedded in a resin body of the first member by insert molding. An electromagnetic shield layer of the second member is electrically connected to the electromagnetic-shielding member.

Abstract: A light bulb loudspeaker and sound system where a wireless or wire receiver, amplifier and power supply can be mounted inside of the boundary defined by a light bulb and base where the glass bulb can be used as a sound radiating diaphragm, or alternatively, the bulb can be made to move as a plunger and this act as a sound diaphragm. A transducer can convert audio from the amplifier into sound and thereby excite the glass bulb or cause it to move. A baffle can optionally be provided in the form of a lamp shade or otherwise. Different channels can provide different audio signals to different light bulb loudspeakers in the same physical area, or an electrical signal could be multiplexed. A small base station unit can transmit radio or wire signals containing audio information from an audio source such as a stereo. The filament can optionally be used as a radio receiving antenna.

Abstract: An apparatus, system, and method are disclosed for an audio belt buckle. The audio belt buckle contains a belt buckle housing, at least one speaker, an audio input receiver, an amplification device, and a power source. The belt buckle housing is coupled to a first end of a belt of a user. The belt buckle housing is configured to secure an opposing end of the belt to hold the belt around the waist of a user. The speaker is coupled to the belt buckle housing and is directed away from the user's body. The audio input receiver is also coupled to the belt buckle housing and is configured to receive audio input. The amplification device is coupled to the audio input, the speaker, and the power source.

Abstract: The present invention relates to a speaker, comprises a housing having a top housing cap and a bottom housing cabinet. The top housing capwith a plurality of through slots are provided on the top housing cap and the bottom housing cabinet which provides with an accommodating space; a speaker unit having a bowl-shaped seat; an amplifying circuit; an USB cable for gaining the required power; an audio cable for obtaining audio signals; a cup-shaped cabinet that can be provided on the bottom housingcabinet, so a space where a resonating effect can be generated is defined between the bowl-shaped seat of the speaker unit and the cup-shaped cabinet, therefore vibrations generated by the speaker unit is transferred to an output of good-quality sound effect.

Abstract: In an electro-acoustic converter, a frame is bonded to the magnetic circuit, and the diaphragm is bonded to a circumferential edge of the frame. The voice coil is attached to the diaphragm and a part thereof is located in a magnetic gap of the magnetic circuit. The terminal is made of a sheet metal having spring property and electrical conductivity, and a part thereof is fixed to the frame. The terminal has a bent portion and a contact portion, and is electrically connected to the voice coil. The stopper is provided around a portion of the terminal at one side nearer to the frame than the bent portion, and protrudes from a surface of the frame where the contact portion of the terminal protrudes. The stopper restricts bending of the terminal to an extent within a threshold value of reversibility of a material the sheet metal.

Abstract: A speaker device includes a speaker and a connecting component. The speaker has a pair of input terminals spaced apart with a first predetermined distance therebetween. The connecting component electrically couples the speaker to a printed circuit board. The connecting component has a relay-use printed circuit board and a pair of lead wires. The relay-use printed circuit includes a pair of sub-board portions and a separation portion. The sub-board portions have a pair of terminal holes. The input terminals of the speaker are disposed through the terminal holes, respectively. The separation portion is disposed between the sub-board portions to couple the sub-board portions with a second predetermined distance between the terminal holes of the sub-board portions, and selectively separate the sub-board portions when the first predetermined distance between the input terminals of the speaker is different from the second predetermined distance between the terminal holes of the sub-board portions.

Abstract: An audio apparatus includes a hollow base having one closed end and an opposed open end and a peripheral flange partially closing the open end. A hollow cover having a first portion thereof mounted within the peripheral flange and caged thereby for a linear movement relative thereto in a direction toward to and away from the closed end and having a second portion thereof extending outwardly from the peripheral flange. A controller and a speaker are mounted within a cavity formed by a combination of the hollow base and the hollow cover and coupled to a source of electric power for outputting a predetermined plurality of audible messages. A resilient membrane is provided for biasing the cover away from the closed end of the base. The audio apparatus enables the user to acquire a single unique morsel of knowledge and/or information on a daily basis for prolong period of times.

Abstract: An electronic device (100) having a speaker (30) located in a sealed and separate speaker enclosure is described. The electronic device includes a housing (20), a circuit board (70), a cover (60), and two connecting bodies (50). The housing includes a cavity (22) defined therein for receiving the speaker. The circuit board is electrically connected to the speaker. The cover has through holes (622) defined thereon and is disposed between the housing and the circuit board. In addition, one end of the connecting bodies connects to the speaker, and the other end of the connecting bodies is configured to resist the circuit board via the through holes to electrically connect the speaker and the circuit board.

Abstract: This invention discloses a loudspeaker 100 that includes a casing 110, a drive assembly 111 with a magnetic core 112, and an induction (voice) coil 113 attached to a first rigid plate 114 for the transmission of vibrations to a support 300. The first rigid plate 114 is attached to the casing 110 by a second plate 115 used for the suspension and the radial positioning of the voice coil 113, and elastic studs 116, used for the elastic suspension of the first rigid plate 114 in relation to the casing 110. By virtue of the invention a room can be transformed easily into an auditorium.

Abstract: A battery and speaker mounting apparatus includes a base member including a battery socket positioned adjacent a support surface on the base member, and a speaker chamber defined by the base member and separated from the battery socket by the support surface. A speaker module may be mounted in the speaker chamber, and a battery may be coupled to the battery socket.

Abstract: A Wireless Acoustic SPeaker mount, or WASP, is disclosed that serves as both a wireless speaker adapter and a speaker mount. Some embodiments include a separate transmitter that obtains wired acoustic signals from an acoustic source and transmits them wirelessly to the WASP. WASP's can include a digital and/or analog wireless receiver, digital-to-analog converter, amplifier, and/or equalizer or other sound quality adjuster. WASP's can rest on a horizontal surface or be mounted to or embedded within a wall, ceiling, or other structure. Speakers can rest on or attach to a WASP or be mounted inside of a WASP. In various embodiments the horizontal and/or vertical positioning of the speaker is adjustable, WASP's can be used outdoors, WASP's can extend a wireless transmission range by relaying signals to other WASP's, and the transmitter and WASP's can send on/off and other command signals to each other.

Abstract: This present invention relates to a multimedia luminous speaker comprising: a speaker base (2); at least a speaker (3) installed on the speaker base (2); a control circuit (5) installed inside the speaker base (2) electrically connected to the speaker (3); at least, an LED (53) installed inside the speaker base (2) electrically connected to the control circuit (5); a transparent or semi-transparent shade (1) coupled to the speaker base (2) keeps a distance to the LED (53) in the speaker base (2); the shade (1) has a hollow shade (12) made of plastic; the shade (1) fixed to the speaker base (2) by a bolt (11) fit through a central bore at a proximal end of the hollow shade (12) and then a distal end of the bolt (11) screwed to the speaker base (2).

Abstract: A sound generating device for transforming an object into a loudspeaker is includes an exciter module adapted for receiving audio signals stored on a portable micro-memory card or the like and a mounting device connected to the exciter module for removably connecting the exciter module to an object such that the object is transformed into a loudspeaker when the exciter module is energized by the audio signals.

Abstract: A direct digital drive audio system and method system and method are presented. The direct digital drive system and method utilizes a digital signal to directly drive the speakers. In one exemplary implementation, an audio system includes a sample register, an convergence adjustment component, an accumulated error register, a digital driver and a speaker. The sample register is coupled to the convergence adjustment component which is coupled to the accumulated error register and the digital driver which in turn is coupled to the speaker. The sample register holds an audio sample. The convergence adjustment component calculates the error for each sample. The accumulated error register stores an accumulated error. The digital driver determines whether to drive on a positive digital value, drive on a negative digital value or not drive. The speaker creates audio sounds based upon a signal from the digital driver.

Abstract: An expandable speaker apparatus includes a speaker body, at least one first electrical connector, and at least one second electrical connector. The first electrical connector is located on a first surface of the speaker body. The second electrical connector is located on a second surface of the speaker body. The first electrical connector corresponds to the second electrical connector, and the first electrical connector is electrically connected with the second electrical connector. Thereby, the speaker body is electrically connected with a second speaker body using an electrical connector that is same as the pair of electrical connectors. The conducting line is not required, and the speaker apparatus is expandable.

Abstract: A loudspeaker is provided in which the outer diameter or foot of the spider is over molded with a standoff formed of a plastic material in an injection molding tool so that the spider and standoff form an integral unit. The standoff, in turn, is glued or otherwise affixed to the frame of the speaker to provide accurate centering of the voice coil relative to the magnetic gap of the motor structure.

Abstract: This invention is directed to a loudspeaker having a lead wire management system including guides located at both the voice coil and the frame of the speaker. Each guide is angled allowing them to control the arc at which the lead wires extend between the voice coil and frame, and rounded edges of the guides relieve stress on the lead wire joint connections during motion of the voice coil.

Abstract: A microphone-speaker assembly includes a housing, a microphone, a speaker, and a push-to-talk switch. The housing supports the speaker for movement between a first position in which the switch is not activated and a second position in which the switch is activated. The switch is located in a water resistant chamber along with a circuit board. The speaker moves toward the circuit board when it moves from the first position to the second position. A seal supports the speaker for movement between the first and second positions. A method of activating a microphone in a microphone-speaker assembly includes the steps of applying force to a speaker of the assembly, and moving the speaker thereby to activate the switch thereby to activate the microphone. The speaker moves relative to a push to talk switch, deforming a resilient membrane that helps to form a water resistant chamber in the assembly.

Abstract: The present invention provides a powered speaker, such as a subwoofer that may be turned on and off remotely by energizing the auxiliary AC power supply provided with an audio device or other source unit. The main power of the powered subwoofer is provided via a wall outlet or suitable power supply that may adequately supply the necessary power.

Abstract: A speaker device includes a terminal metal which is electrically connectible to a tinsel cord and a wiring, and a supporting body which includes a terminal metal mounting part on which the terminal metal is mounted. The terminal metal is mounted on the terminal metal mounting part. Thereby, the tinsel cord and the wiring can be electrically connected to each other via the terminal metal, without providing a terminal board. Thus, the number of parts can be reduced by the number of omitted terminal board, and the cost of the speaker device can be reduced.

Abstract: A fused speaker terminal cup for component attachment to a speaker enclosure and electrical connection to a speaker system is disclosed. In particular, the present invention provides a novel speaker terminal cup design in which a removable fuse is externally mounted therein for external access. In a preferred embodiment, the fuse receptacle is removable from the terminal cup to permit interchangeable fuse type selection.

Abstract: A speaker device includes a speaker unit and a speaker device bracket mounted thereon. The speaker device bracket has a condenser fixing part for fixing a network electronic part such as a condenser, and a connector terminal fixing part for fixing a speaker device connector terminal which is electrically connected to an amplifier and a voice coil. Thus, both of the condenser and the connector terminal can be fixed to the speaker unit by using a speaker device component part being one dedicated part, and the number of parts of the speaker device and the number of procedures can be reduced. Additionally, by providing the fixing parts at appropriate positions of the speaker device bracket, the mounting freedom degree of the network electronic part can be improved.

Abstract: A speaker device includes a speaker device terminal including a pair of terminal metals and a terminal metal mounting part on which the pair of terminal metals are mounted, and a frame including a terminal mounting part on which the speaker device terminal is mounted. The terminal mounting part is provided on a rear side of the frame positioned on a side opposite to a sound output side. The speaker device terminal is mounted on the terminal mounting part in such a state that the pair of terminal metals are mounted on the terminal metal mounting part positioned on the side opposite to the sound output side. The terminal metal mounting part has a projecting part, projecting on the side opposite to the sound output side. A height of the projecting part in the projecting direction is higher than heights of the pair of terminal metals in the projecting direction.

Abstract: A speaker housing that includes an outer wall that has an upper wall point and a lower wall point. The outer wall forms an enclosure that is arranged in a predefined geometric shape that may match the shape of a loudspeaker that is installed in the speaker housing. The speaker housing also includes a mounting lip that extends inwardly a predetermined distance toward a central axis of the enclosure from approximately the upper wall point or from the upper wall point. A support member extends downwardly from an outer edge of the mounting lip to a motor assembly housing. A dual sided connector is formed on an outside surface of the outer wall that allows a clip to be connected to conductive leads in the dual sided connector from either side of the dual sided connector.

Abstract: A button apparatus with a speaker (100) has a frame (104), a speaker (108), a flexible PCB (110), a metal dome (114), a rubber layer (116), and an operating button (120,124). The frame has a cavity (106) and the speaker is securely received in the cavity. The flexible PCB is located on the frame. The metal dome is located on the flexible PCB, and adapted to electrically connect with the flexible PCB. The rubber layer is located on the flexible PCB. The rubber layer has a protrusion (118) to press the metal dome so that the metal dome is electrically coupling to the flexible PCB. The operating button is located on the rubber layer. The button is adapted to press the protrusion, which in turn presses the metal dome.

Abstract: A dual purpose loudspeaker incorporating at least two audio signal inputs and at least one switch is adapted to receive and reproduce either a single audio signal input or two audio signal inputs according to the position of the switch. A switch slide mechanically linked to the switch is provided which blocks one of the audio signal inputs when the switch is in the single-channel position, thereby preventing erroneous connection to the blocked audio signal input.

Abstract: A portable multi-function device includes a housing and a cover. The housing includes an interior housing and an exterior housing connecting to each other. The interior housing has at least a hub having audio units. Recess parts are located on the upper side of the interior housing for placing the audio units. The exterior housing has a storage box. Terminal ends on side of the storage box connect correspondingly to each of the audio units for placing a data process device in the storage box. The cover is mounted on a side of the housing. A connector is installed at another side of the housing corresponding to the cover to lock and unlock the housing. The cover has holes corresponding to each of the recess parts on the upper side of the interior housing. Whereby, each of the audio units is portable and easy for storage.