... available 1.Reader function: plug in TF card, con- nect to computer by USB 2.0 cable, then download music ... type: MP3,WMA,WVA format, maximum capacity 32GB TF card.4.Sound design: Use best horn, ensure HI-FI ... , light stop, the battery is full of power. 7.Press on/off button, it shut off auto after ... walking,shopping,running,doing housework,fixing things Popular wireless headset with TF card player