[Most Compact Sleek 12000mAh Aluminum Body Portable Charger] Key Power Shake-N-Wake High Capacity External Battery Power Bank for Apple iPhone, iPad, Samsung Galaxy, GoPro, Tablets and More Portability: Lightweight and ultra compact aluminium design. Capacity: A Massive 12,000mAh battery capacity that can charge most current generation phones 3-8 times. Safety: Reliable cells made from Grade A+ Premium batteries rated for over 500 cycle charges! Built-in short circuit and overcharge protection will allow for continuous and rigorous use with peace of mind. Practical Sleek Charger: Perfect for indoor or outdoor activities like travel, camping or hiking, emergencies, commuters and families. Dual USB Output: Total 3.1A max to deliver the fastest charging speed.