ANTPO Waterproof Power Bank 15600mAh External Battery Pack with High Capacity Dual USB Output Portable Charger for iPhone iPad Smart Phone and Other Mobile Devices(Blue) High power 15600 mAh capacity with two USB outputs (5V / 2.1A and 5V / 1A) offers backup power for your devices while out of the house. Portable power bank built-in lithium-ion polymer battery for increasing safety.100-240 volt AC input eligible for worldwide use. Amazing design with waterproof of power bank, perfect for campers and many other outdoor enthusiasts. The battery pack compatible with Android, iPhone, iPod, Samsung, cellphones,&tablets, charge two devices at the same time. Outstanding Customer Service: Limited 18 months Warranty and Lifetime Product Support.