ReVIVE Premium External 10000mAh Battery Pack Portable Power Bank - Includes Dual USB Ports & LED Flashlight Works with Apple, HTC, Samsung & More USB Powered Devices POWER YOUR DEVICE - Perfect for charging devices by Apple , Samsung , Sony , Motorola , Microsoft and more! LONG LASTING CHARGE - 10,000mAh Li-ion battery takes 10-20 hours to fully charge. Lasts up to 5 charge cycles for smartphone and 2.5 cycles for tablets. CHARGE TWO DEVICES AT ONCE with included 1A USB port , 2.1A USB port and a micro-USB port to charge the power bank PORTABLE DESIGN - Dimensions: 4.3 x 2.9 x 0.9 inches / Weight: 8.14 ounces BUY WITH CONFIDENCE with the included USA Gear 3 year manufacturer's warranty!