... the color according to customer's requirement. 1.Reader function: plug in TF card, con- nect to computer by USB ... MP3,WMA,WVA format, maximum capacity 32GB TF card.4.Sound design: Use best horn, ensure ... decode chip, WAV original sound decode. 5.Headset function: Take wheat audio line (select) connects headset ... , it works normal. Red light flash, needs to recharge, after flash 1 min,headset shut off ...