portable battery Model: WF-10000 Capacity: 10000mah Cell type: Lithium-Polymer Cell Input: 5.5±0.2V Output:≤650mA Charging time:10 hours Color: white Weight: 240g 1. universal, allicable for all devices charged via USB port 2. fashinonable streamline design 3. smart power management WF-10000 moveable battery can be used for following brand cell phone: NOKIA, MOTORALA, SAMSUNG, SONY ERICSSON, BLACKBERRY HTC, LG, IPHONE, IPOD, MP3 etc.