... fuction7. Power in put USB power /Lithium battery inside 8.Charging : USB in sert the ... bag, fixing device, string 8. Built-in rechargeable battery, USB port charging through PC 9. All function ... ) power adaptor, use USB power supply.4. Battery: Nokia li-ion battery and disassemble, can play music while ... . 3.5mm earphone audio input. 6. Power supply: 5V/1000Ma AC power adapter, computer USB power ...