Battery Type <ICE Type> S17B Cooler Mobile Phone Radiator Phone Cooler Semiconductor Cooling Fan

Built-in Battery :2400mAh Speed 1: up to 3 Hour Speed 2: up to 2.30 Hour Speed 3:(Max) : up to 2 Hour Double Click Turn On & Speed 1: up to 3 Hour Single Click More Speed 2: up to 2.30 Hour Single Click More Speed 3:(Max) : up to 2 Hour