Earphone line retracting device, automatic line retracting earphone, non-radiation wire mobile phone and electronic device

摘要

The present invention provides an earphone line retracting device, and an automatic line retracting earphone having the earphone line retracting device, a non-radiation wire mobile phone having the earphone line retracting device, and an electronic device having the earphone line retracting device. The earphone line retracting device at least comprises: a winder, drive means driving the winder, and signal connector means, characterized in that the earphone line retracting device further comprises shift gear means, by which the drive means drives the winder.