... can be for mobile phones, digital cameras, MP3, MP4 and other products power supply or charge to use. This product with lithium polymer ... utility charging ways outside still using solar charging ways, can be in the place where the sun is charging anytime ... the hook, can hang in a knapsack,. Charging convenient, anytime, anywhere.The product parameters1, capacity: 1450 mAh (lithium polymer battery)2, ...