Watch having microphone

A watch comprising a main body and a sound input body, wherein the main body includes a power supply, and the sound input body comprises:

• a microphone powered by the power supply and configured to detect and receive sound and convert the sound into an electric signal;
• a signal transmitting coil unit connected to the microphone, configured to generate an induced electromagnetic field in response to the generation of the electric signal;
• a power receiving coil unit configured to generate an electric signal in response to the generation of the electromagnetic field around the power transmitting coil unit;
• and
• a power receiving unit configured to convert the electric signal generated by the power receiving coil unit into a voltage signal for powering the microphone;
• the main body comprising:
• an interface unit;
• a signal receiving coil unit coupled with the signal transmitting coil unit, and configured to generate an electric signal in response to the generation of the induced electromagnetic field around the signal transmitting coil unit;
• a signal amplification unit configured to amplify the electric signal generated by the signal receiving coil unit;
• a power transmitting unit configured to convert the electric signal amplified by the signal amplification unit into a voltage signal with a predetermined value;
• a power transmitting coil unit configured to generate an induced electromagnetic field in response to the voltage signal converted by the power transmitting unit;
• and
• a control unit connected to the signal amplification unit via the interface unit, configure to recognize the electric signal amplified by the signal amplification unit to execute corresponding function.