Abstract: An electronic device and a speaker are provided. The speaker includes a housing, a magnet, a vibrating element, a circuit board and a electromagnetic inductor. The magnet is disposed in the housing. The vibrating element is disposed in the housing to vibrate relatively to the magnet for sounding. The electromagnetic inductor is disposed on the vibrating element for inducting a magnetic field of the magnet to generate electricity. The circuit board is disposed at the housing and has two audio input terminals, two audio output terminals, two power input terminals and two power output terminals. The audio input terminals are electrically connected to the audio output terminals, respectively. The power input terminals are electrically connected to the power output terminals, respectively. The vibrating element is electrically connected to the audio output terminals. The electromagnetic inductor is electrically connected to the power input terminals.

Abstract: An earphone speaker including a conductive housing, a micro speaker module, and a circuit board is provided. The conductive housing has a holding space. The micro speaker module is disposed in the holding space. The circuit board is disposed outside the conductive housing, and has a first surface facing towards the conductive housing and a second surface corresponding to the first surface. A positive terminal and a negative terminal are disposed on the second surface and electrically connected to the micro speaker module. A conductive material layer is disposed on the first surface and electrically connected to the negative terminal, and the conductive material layer is directly contacted with the conductive housing.

Abstract: An earphone structure including one or more composite chambers is described. Each of the composite chambers includes sub-speakers. The sounds generated by these sub-speakers are uniformly distributed in the composite chamber and a composite sound field is generated by these sub-speakers. The sound field generated by each of these sub-speakers can be adjusted by re-locating the position of the sub-speaker, for example, by re-locating the sub-speaker, or by re-locating the sub-speaker in different angles, to generate the composite sound field. The sound field generated by the main speaker and the composite sound field generated by these sub-speakers can form a spatial sound with very good quality. By using of its physical characteristics of locations of these sub-speakers, the sound generated by the earphone has an uniformly diffusion sound pressure and a surround effect, which allows a user of the earphone to enjoy a sound field similar to that in a theater.

Abstract: An earphone structure including one or more composite chambers is described. Each of the composite chambers includes sub-speakers. The sounds generated by these sub-speakers are uniformly distributed in the composite chamber and a composite sound field is generated by these sub-speakers. The sound field generated by each of these sub-speakers can be adjusted by re-locating the position of the sub-speaker, for example, by re-locating the sub-speaker, or by re-locating the sub-speaker in different angles, to generate the composite sound field. The sound field generated by the main speaker and the composite sound field generated by these sub-speakers can form a spatial sound with very good quality. By using of its physical characteristics of locations of these sub-speakers, the sound generated by the earphone has an uniformly diffusion sound pressure and a surround effect, which allows a user of the earphone to enjoy a sound field similar to that in a theater.

Abstract: An audio adapter including a first connector, a second connector, a manually adjustable passive audio adjusting unit, and a signal line is provided. The signal line sequentially connects the first connector, the manually adjustable passive audio adjusting unit, and the second connector. An earphone and a speaker box using the same manually adjustable passive audio adjusting unit are also provided.

Abstract: An earphone including a housing, a moving coil speaker, and a balance armature speaker is provided. The housing has an accommodating space and a single sound conducting channel connected to the accommodating space. The moving coil speaker and the balance armature speaker are disposed in the accommodating space of the housing, and sounds generated by the moving coil speaker and the balance armature speaker are output together through the single sound conducting channel. The earphone is characterized by soft bass from the moving coil speaker and a smooth frequency response curve from the balance armature speaker.

Abstract: The present invention relates to a multiple channel earphone of small volume. In the earphone structure, a chamber tube with an adjusting hole or a set of adjusting holes is provided. The sound pressure of the chamber tube is naturally released without affected the performance of the main chamber sound field. When the external speaker connected to the chamber tube generates a large sound pressure, the sound pressure released naturally by the adjusting hole or a set of adjusting holes is increased accordingly, so that the sound pressure produced by the external speaker connected to the chamber tube is controlled by the main chamber.

Abstract: An earphone with a sound guiding tube is provided. The sound guiding tube has an external chamber beside the ear. Compared with a conventional earphone which transmits sound directly into the ear, the earphone of the present invention has a external chamber which forms sound field outside the ear and then transmits the sound into the ear through a sound guiding tube in a particular angle. The earphone of the invention is suitable for stereo sound source or multiple-channel sound sources and will reduce damage caused by wearing the earphone for a long time.

Abstract: An earphone with adjustable volume of a front chamber between a speaker and a housing is provided, which includes a speaker unit, a housing and a movable element. The speaker unit is disposed within the housing, and the housing includes an earplug formation formed in front of the speaker unit. A chamber within the earplug formation has a volume, and the movable element is disposed on the housing and moves correspondingly with the chamber, so as to adjust the volume of the chamber. Therefore, the frequency response of the sound sent by the speaker unit varies depending upon the variation of the volume of the chamber.

Abstract: A digital wireless earphone device with stereo or multiple-channel sound effect automatic detection and switching functions is provided. The multiple-channel digital wireless earphone device uses a signal processing and transmitting device to decode multiple-channel signal sources. After the decoding is completed, the multiple-channel signal sources are concurrently transmitted to a wireless earphone end through a radio. After being directly digital-to-analog converted and amplified, the multiple-channel signals are connected to a plurality of speakers to generate a multiple-channel surround sound field. The wireless earphone at a receiving end further has an automatic detection function for detecting a 6CH or 2CH sound source and automatically selects an earphone playing mode accordingly.

Abstract: An earphone structure which allows adjusting ventilation of a chamber inside is provided. A plurality of holes is formed on a main body of the earphone structure and ventilation materials are disposed on the ventilation holes as a ventilation medium between the chamber in the main body and an external environment. A sound field generated in the chamber is changed through the change of the materials, which makes the sound field close to the natural tone. The adjustment of the ventilation is mainly based on the fact that sound has different frequency response effects on different materials in the transmission environment, thus achieving the effect of changing the sound field. For example, the adjustment of the ventilation can be achieved by filling different materials in the chamber. Further, partition part of the chamber can also use the frequency response of the sound of materials with different hardness.

Abstract: An earphone structure including one or more composite chambers is described. Each of the composite chambers includes sub-speakers. The sounds generated by these sub-speakers are uniformly distributed in the composite chamber and a composite sound field is generated by these sub-speakers. The sound field generated by each of these sub-speakers can be adjusted by re-locating the position of the sub-speaker, for example, by re-locating the sub-speaker, or by re-locating the sub-speaker in different angles, to generate the composite sound field. The sound field generated by the main speaker and the composite sound field generated by these sub-speakers can form a spatial sound with very good quality. By using of its physical characteristics of locations of these sub-speakers, the sound generated by the earphone has an uniformly diffusion sound pressure and a surround effect, which allows a user of the earphone to enjoy a sound field similar to that in a theater.

Abstract: An earphone structure including one or more composite chambers is described. Each of the composite chambers includes sub-speakers. The sounds generated by these sub-speakers are uniformly distributed in the composite chamber and a composite sound field is generated by these sub-speakers. The sound field generated by each of these sub-speakers can be adjusted by re-locating the position of the sub-speaker, for example, by re-locating the sub-speaker, or by re-locating the sub-speaker in different angles, to generate the composite sound field. The sound field generated by the main speaker and the composite sound field generated by these sub-speakers can form a spatial sound with very good quality. By using of its physical characteristics of locations of these sub-speakers, the sound generated by the earphone has an uniformly diffusion sound pressure and a surround effect, which allows a user of the earphone to enjoy a sound field similar to that in a theater.

Abstract: A stereo bluetooth headset including a bluetooth transceiver, at least one inter-speaker, a microphone and an audio output port is provided. The bluetooth transceiver is used for transceiving signals with an electronic device in a wireless mode. The inter-speaker is electrically connected to the bluetooth transceiver for broadcasting audio signals received from the electronic device. The microphone is electrically connected to the bluetooth transceiver. The audio output port is electrically connected to the bluetooth transceiver and suitable for connecting to an audio input port of an outer-speaker through a connecting cable, so as to transmit stereo audio signals received from the electronic device to the outer-speaker through the connecting cable for broadcasting.

Abstract: An earphone speaker including a conductive housing, a micro speaker module, and a circuit board is provided. The conductive housing has a holding space. The micro speaker module is disposed in the holding space. The circuit board is disposed outside the conductive housing, and has a first surface facing towards the conductive housing and a second surface corresponding to the first surface. A positive terminal and a negative terminal are disposed on the second surface and electrically connected to the micro speaker module. A conductive material layer is disposed on the first surface and electrically connected to the negative terminal, and the conductive material layer is directly contacted with the conductive housing.

Abstract: A digital decoder box is introduced for processing multiple-channel digital audio sources. The digital decoder box can detect formats of audio sources and perform different decoding processes, and output the audio sources to an earphone with 5.1 channel speakers. When a 5.1 channel audio source is received, the digital decoder box decodes the audio source and outputs the audio source to the 5.1-channel earphone. Three sets of audio signals are outputs including front stereo signals, rear stereo signals, center channel signal, and sub woofer signal. When a two channel audio source is received, the amplified audio signals from the digital decoder box are output to at least two sets of speakers within the 5.1-channel earphone. By the various speaker combinations within the 5.1-channel earphone, sound effects of separated sound fields may be generated. A two channel stereo audio source may then have different sound effects.

Abstract: An earphone structure including one or more composite chambers is described. Each of the composite chambers includes sub-speakers. The sounds generated by these sub-speakers are uniformly distributed in the composite chamber and a composite sound field is generated by these sub-speakers. The sound field generated by each of these sub-speakers can be adjusted by re-locating the position of the sub-speaker, for example, by re-locating the sub-speaker, or by re-locating the sub-speaker in different angles, to generate the composite sound field. The sound field generated by the main speaker and the composite sound field generated by these sub-speakers can form a spatial sound with very good quality. By using of its physical characteristics of locations of these sub-speakers, the sound generated by the earphone has a uniformly diffusion sound pressure and a surround effect, which allows a user of the earphone to enjoy a sound field similar to that in a theater.

Abstract: A multiple channel earphone is provided, which includes a chamber main body and a main chamber support located in the chamber main body. A front field mixing chamber, a main chamber, and a back chamber are formed in the chamber main body. The main speaker is located on the main chamber support or a partition board, a sub-speaker is disposed on a protruding portion of the chamber main body, and the back chamber is formed between the sub-speaker and the main chamber support or the partition board. In an embodiment, the multiple channel earphone structure further includes at least one or more pairs of chamber extension tubes disposed outside the chamber main body. According to the length of each chamber extension tube and the space in the chamber main body, a composite sound field characteristic generated in the earphone structure is adjusted and output by the multiple channel earphone.