Compatible with cell phone, MP3, MP4 and other electronic products outdoor, travel and tourism charge, preferred products, to ensure that business communication abd music entertainment in normal use. With the idenfication of genuine and counterfeit notes and up to 60 hours of continuous lighting function. Suitable for Nokia 7210, 6101, Sony Ericsson K750, MP3 mini 4pin, Samsung D800, Motorola V3. Can be a full 1200mA cell phone batteries, no electricity toi lift the trouble. Professional design, fashionable guider, compact and easy to carry. DC output voltage: DC 5V +/- 0.2V Output current: 350mA -550mA Built-in lithium power: 2600mA