Micro FM Audio Transmitter

Abstract

A micro FM audio transmitter comprises a base male terminal receiving power and data transmissions from a digital product and providing audio output, a base female terminal receiving external charge and transferring data to said digital product, and a FM signal conversion transmitter receiving audio output from the base male terminal, transferring it into FM signals and transmitting it. Besides, an audio low-pass control circuit, a dual-frequency selection circuit and a power dependent audio switching circuit are installed, so reducing of volume and preventing electromagnetic interference are achieved.

Dependencies are inferred from the claim text.