... player and other similar products. 1. Suitable for mobile phones, digital cameras, MP3/MP4 player and ... the problem of inserting plugs wrongly.5. Smart protecting chip: over-discharge, overload, short- ... hook hanged on the backpack.Specifications1. Lithium polymer battery 1450 mAh/3.7V2. Shell: ABS+PC ... 500mA5. Output: USB 5.5V/500mA6. Variety using: mobile phone, digital camera, ipod, iphone, psp, MP3/4 ...