SIIG Portable Battery Charger for iPhone/iPod (CE-CH0412-S1) High-capacity/high-output portable battery charger. Perfect for use on the road - no power outlet needed! Works great with iPad/tablet computers, smartphones, mobile phones, MP3 players, portable game systems and more High-quality rechargeable Lithium-Polymer battery recharges easily via computer USB port or USB wall charger 2A total power output ensures FAST device charging Extends mobile phone talk time up to 40 hours, up to 50 hours of video or up to 200 hours of music