... con- nect to computer by USB 2.0 cable, then download music and studying material2.Power supply: inlay ... original sound decode. 5.Headset function: Take wheat audio line (select) connects headset and PC mic port, you can ... flash, needs to recharge, after flash 1 min,headset shut off auto. Charging, red light keeps flashing, ... after 30s8.OEM are welcome. Wireless headset with TF card for PC and mobile