Patent ID: 7248902

Claim:
A multi-mode power supply device of a wireless earphone; the earphone being communicable bi-directionally with portable communication devices wirelessly through an antenna; the earphone having a battery set in at least one side of the earphone; an internal of the earphone having a power management circuit; the battery set supplying power to the power management circuit; the power management circuit being used to control the power on or off; and wherein each of two sides of the earphone has a groove; the power supply module is installed in a suspender; one end of the suspender is inserted into one of the two grooves at two sides of the earphone so as to position the suspender to the earphone, the suspender having a power supply module; when the suspender is combined to the earphone, the power management circuit is electrically connected to the power supply module and because the power management circuit is also electrically connected to the battery set, power is supplied to the earphone.