| 摘要 |
The present invention discloses a modular modification of cellular phone handfree kit and the applications thereof, wherein said cellular phone handfree kit comprising a front cap, a back cap, a clasp and an upholder portion; said cellular phone handfree kit is suitable for use with different folding-type cellular phones by exchanging said clasp and said upholder portion; said cellular phone handfree kit further comprising a circuit board which comprises a FM audio signal module and a charging controller, said FM audio signal module further comprising a signal amplifying circuit, a FM modulation module, a filter and a transmitting antenna; upon receiving an audio signal from a cellular phone, said cellular phone handfree kit processing and converting said audio signal to a FM audio signal, transmitting said FM audio signal to a radio or a FM receiver using said transmitting antenna, and broadcasting said FM audio signal using a speaker of said radio or said FM receiver.
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