... in TF card, con- nect to computer by USB 2.0 cable, then download music and studying material2 ... WAV original sound decode. 5.Headset function: Take wheat audio line (select) connects headset and PC mic port, you ... light flash, needs to recharge, after flash 1 min,headset shut off auto. Charging, red light keeps flashing, ... ,doing housework,fixing things Popular wireless headset with TF card player