portable power Work for iPhone 3GS,iPod nano 5th generation, all iPhone 3G,iPhone,all iPod models,Mobile phones,MP3 & MP4 Portable powerWork for iPhone 3GS,iPod nano 5th generation, all iPhone 3G,iPhone,all iPod models,Mobile phones,MP3 & MP4Features:1. Battery Type:Lithium-ion battery2. Capacity:2000mAh3. Rated Input: 5V,800mA4. Rated Output:5V,500mA5. Charge time: Around 4 hours6. Dimensions:67 ...