| 摘要 |
A multifunction audio wireless transmission device and a wireless earphone are proposed. The multifunction audio wireless transmission device can be connected externally with or embedded in a mobile phone, and can also connect an external audio output device. The wireless earphone can receive broadcasts and be used as a handsfree mobile phone through circuit control. Bidirectional signal transmission between the multifunction audio wireless transmission device and the wireless earphone is accomplished by means of a wireless transmission unit. The wireless earphone has the functions of volume adjustment, frequency/broadcast selection, handsfree communication/music listening switching, and broadcast channel adjustment.
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