... 800 times Long lifespan7. Flashlight function Compatible with Most mobile Phones:Apple iPhone 4S , iPhone 4 , iPhone 3GS, ipod touch,classic,nano, iPad,iPad ... , EVO 3D ,EVO 4G , Incredible S , Evo Shift 4g Samsung Galaxy S 2 ,Epic 4G ,Galaxy S 4G , Galaxy Nexus Blackberry Curve ... . Operating temperature: -10~40°C7. Storing temperature: -20~50°C 2 in 1 mobile Power bank for iPad and iPhone