... one TF card, it can play the same as MP3 player (TF card is not included)3. Built-in Li ... stereo jack7. Audio Source: TF card,PC,MP3,MP4,MD,CD,DVD player, Mobile phone,etc 8. Switch available, volume ... also insert the mini usb port into the audio driver,the other two ports of usb cable,one of ... to furnish audio frequency for PC,music mobile phnone,Mp3,Mp4,CD,palm players and other portable fixtures. 1 ...