Abstract: The application belongs to the field of earphone technology, and discloses a type of noise-reducing earphones with adjustable voice. An audio processor processes voice signals. After a digital signal processor (DSP) completes noise reduction, the signals return to the audio processor, where two signals are combined, through another signal wire. Then the signals are transmitted to a digital-to-analog converter (DAC) that transmits the signals to an acoustic amplifier, where the signals are transmitted to a speaker to realize the adjustment of voice.

Abstract: The utility model relates to a Bluetooth earphone, comprising a main earphone unit and an auxiliary earphone unit, further comprising a pair of ear hooks. The front part of the inner side of each of the said earphone units is provided with a connecting canal for inserting the said vertical insertion segment at the bottom. The Bluetooth earphone provided in the utility model not only adapts to applications in different situations by setting a pluggable ear hook, but also uses memory alloy as the inner skeleton of the ear hook to facilitate a user make a fine adjustment by his/her shape of auricle.

Abstract: The present invention discloses a lumped circuit balance converter applied to double-sided parallel lines, comprising a radio frequency transceiver, a balance converter, a filter and a matching network. The filter is connected with the matching network through the balance transmission line. The balance converter comprises a second circuit block, a first circuit block, a third circuit block, a first port, a second port and a third port. A positive polarity of a signal is positioned at the top of the second port and the bottom of the third port. Balance signals are respectively fed to the converter at the top of the second port and the bottom of the third port, and the signals are combined in the first port. The present invention has simple structure and better effect when used, can be easily changed to different required performance, and has good applicability and strong practicability.

Abstract: A moving-coil speaker includes: a magnetic path unit (1); an annular frame (3) connected to exterior of the magnetic path unit (1) and used to carry a membrane (2); and a PCB (4) installed on the frame (3) and used to solder thereon a component or provide electrical conduction. An outer perimeter of the frame (3) is 45 mm. A positioning pin (5) is disposed at a front side of the frame (3) and overlapping with a central axle extension line of the PCB (4). Two sets of air vents (6) are provided on the frame on two sides of the positioning pin (5). A tune paper (7) is pasted on the surface of the frame (3) on the two sides of the positioning pin (5). A distance between the positioning pin (5) and the center of a first air vent at the starting place of each set of air vents (6) is equivalent to a distance between a side of the PCB (4) and the center of a second air vent at the last place of each set of air vents (6).

Abstract: A type of channel-convertible headphone is disclosed in the utility model which comprises: The left speaker, the first articulated switch, the second articulated switch, the right speaker, the left channel input terminal and the right channel input terminal, wherein, the first articulated switch is provided with the first and the second electronic contact and the second articulated switch with the third and the fourth electronic contact which can switch off or on the connection; the left speaker is connected to the third electronic contact through the first electronic contact and the second electronic contact to the right speaker through the fourth electronic contact; the left channel input terminal is connected to the left speaker through the first electronic contact and the right channel input terminal to the right speaker through the second electronic contact.

Abstract: The utility model discloses an ear cup cavity and a corresponding earphone, the ear cup cavity comprising: a speaker face shell (1), a speaker cavity (2), a speaker (3) and a rear shell (4); the speaker cavity (2) is an annular labyrinth type structure which is fixed on the speaker face shell (1); the speaker face shell (1) is provided with the first air port (11) through which air passes and enters into the speaker cavity (2); the second air port (21) through which air enters into the speaker cavity (2) is arranged on the position of the speaker cavity (2) corresponding to the first air port (11); the rear shell (4) is a bowl-shaped structure for accommodating the speaker cavity (2) and the speaker (3).

Abstract: The present invention relates to a type of vibrating membrane for speakers comprising the vibrating membrane body which comprises: A bottom layer used to reinforce the low frequency, a surface disposed on the said bottom layer, a composite metal layer used to ensure vibration uniformity, and a composite platy layer used for HF compensation disposed between the said bottom layer and the said composite metal layer. A type of speaker with the structure of the said vibrating membrane is also disclosed in the invention.

Abstract: The present invention relates to an earphone, which comprises a shell, a speaker arranged in said shell, an sound chamber corresponding to said speaker and an E&M, in which the sound emission hole is arranged in said E&M, and connected with said sound chamber; the earphone also comprises a normally closed pressure relief channel used for connecting the said sound chamber and the outside, and connected when a user puts said E&M in the ear canal.

Abstract: A type of channel-convertible headphone is disclosed in the utility model which comprises: The left speaker, the first articulated switch, the second articulated switch, the right speaker, the left channel input terminal and the right channel input terminal, wherein, the first articulated switch is provided with the first and the second electronic contact and the second articulated switch with the third and the fourth electronic contact which can switch off or on the connection; the left speaker is connected to the third electronic contact through the first electronic contact and the second electronic contact to the right speaker through the fourth electronic contact; the left channel input terminal is connected to the left speaker through the first electronic contact and the right channel input terminal to the right speaker through the second electronic contact.

Abstract: The utility model provides a headphone, comprising a headband, left and right two ear pads and a holder. Two ends of the headband are separately provided with a fixing component, the fixing component includes a conductor block; the holder is made of the conductive material, of which one end is respectively connected with the left and right two ear pads fixedly and the other end is respectively connected with the fixing components in a sliding way, and the conductor block is pressed against the holder; in the ear pads, the first group of signal wires is connected to the holder electrically; in the fixing components, the second group of signal wires is connected with the conductor block electrically.

Abstract: The utility model provides a headphone, comprising a headband, left and right two ear pads and a holder. Two ends of the headband are separately provided with a fixing component, the fixing component includes a conductor block; the holder is made of the conductive material, of which one end is respectively connected with the left and right two ear pads fixedly and the other end is respectively connected with the fixing components in a sliding way, and the conductor block is pressed against the holder; in the ear pads, the first group of signal wires is connected to the holder electrically; in the fixing components, the second group of signal wires is connected with the conductor block electrically.

Abstract: This invention relates to an earphone with a movable push rod structure, which comprising a housing, a sound-emitting unit assembled inside of the housing, and a sound duct connected to the sound-emitting unit for sound transmission, and an earplug connected to the sound duct, with an air duct assembled on the housing for the flow of air inside and outside the earphone, as well as a movable push rod assembled inside the housing and connected with the housing for adjusting air flow condition of the air duct. A completely sealed earphone can be achieved when the push rod is pushed to block the air duct, or an open earphone can be achieved when the push rod is separated from the air duct. This invention has advantages of convenient and flexible regulation of sound modes of the earphones, which can be applied to users who have different requirements for sounds, and also a broader range of applications.

Abstract: This invention relates to an earphone with a movable push rod structure, which comprising a housing, a sound-emitting unit assembled inside of the housing, and a sound duct connected to the sound-emitting unit for sound transmission, and an earplug connected to the sound duct, with an air duct assembled on the housing for the flow of air inside and outside the earphone, as well as a movable push rod assembled inside the housing and connected with the housing for adjusting air flow condition of the air duct. A completely sealed earphone can be achieved when the push rod is pushed to ii block the air duct, or an open earphone can be achieved when the push rod is separated from the air duct. This invention has advantages of convenient and flexible regulation of sound modes of the earphones, which can be applied to users who have different requirements for sounds, and also a broader range of applications.

Abstract: This invention relates to Bluetooth earphone. Existing Bluetooth earphones have some problems: users must wear the earphone to use it, so that the user will feel uncomfortable if the user uses the earphone for a long time. In order to solve these problems, this invention has added a speaker with larger power (i.e. 3W) and configured corresponding speaking amplifying circuit and switching circuit based on the existing Bluetooth earphones. With these new features, the user can adjust his/her Bluetooth earphone by switching different circuit so that it can work in earphone mode or speaker mode. When the Bluetooth earphone works in speaker mode, the user can hear normal voice without wearing the Bluetooth earphone. Obviously, this new invention can be used not only as a common earphone, but also as a speaker. In addition, a call identification circuit, a Bluetooth transmitting circuit and a microphone can be added to expand functions of the whole Bluetooth earphone.

Abstract: The present invention relates to a microspeaker with a damper in a magnetic circuit. The microspeaker includes a support, a magnetic circuit in the support, a diaphragm suspended on the support, and a voice coil and a damper connected with the diaphragm. The magnetic circuit is provided at the center with a through hole where the damper is positioned, and the voice coil is positioned in a magnetic gap formed by the magnetic circuit. The microspeaker of the present invention with the damper in the magnetic circuit can not only equally control resonance but also be produced in a simpler way compared to adding damping materials to the support.