... speed to charge your devices Features1. Slim, Sleek, Compact, portable and stylish appearance 2. Circulation increased by 82% 3. Advanced IC ... function Compatible with Most mobile Phones:Apple iPhone 4S , iPhone 4 , iPhone 3GS, ipod touch,classic,nano, iPad,iPad 2 HTC Sensation XE XL ,Thunderbolt ... : -20~50°C 2 in 1 mobile Power bank for iPad and iPhone