... Model:HT002 3.Voltage:5V 4.Capacity:2200mAh external battery power for mobile phone battery Basic parametersOutput Voltage: DC5.0V± ... DescriptionThis product is a high-performance USB interface, mobile power, using high-quality ultra-thin Li-Polymer batteries ... with a USB interface s,uch as mobile phone, iPhone, PSP, IPOD, MP3,MP4, PMP, GPS, Bluetooth, digital cameras external battery power for mobile ...