... card and FM Reception fuction7. Power in put USB power /Lithium battery inside 8.Charging : USB in sert the USB ... (optional) 2.. Built-in TF card slot, can be as card reader 3.Build-in stereo FM radio ... red, blue, gold 7. Accessories: Line-in cable, USB cable, earphone, velvet bag, fixing device, string 8. ... Built-in rechargeable battery, USB port charging through PC 9. All function in ...