External Battery for BlackBerry&Iphone 4S Capacity: 2000 mAh Backup Battery Charger for iPhone 4S&3g&iPhone&iPods & BlackBerry* Battery Type:Lithium-ion battery* Capacity:2000mAh* Rated Input ... 3G* Weight:65gCompatible with:* Work for all iPhone 4S&3G,iPhone,all iPod models,Mobile phones,MP3 & MP4 Players Battery Charger for BlackBerry