Yubi Power High capacity power bank is Produced with the highest standards and quality in mind. Intelligent circuitry provides safe and efficient charging. Top quality high tech battery cells with protection board, ensures long life and protection against over charge, over voltage, over current, and short circuit protection. Intelligent LED shows the current power level. This power bank is ideal for most digital devices with DC5V input, such as iPhone, iPad, Smartphones, PSP, Mp3, GPS, Amazon kindle, Google Nexus, etc. Specs, Average Charging time for iPhone's are 1.5 hrs., Input Charging Time 9 hrs., Life Cycle greater than 500 Times, Input: DC 5V, Output: DC 5V 2.1A, Dimension: 100x60x24mm, Battery capacity: 8400mAh Compatible with Most Cell Phones: Apple: iPhone 4S/iPhone 4/iPhone 3GS/iPod touch/classic/Nano/iPad/iPad 2 [OEM Cable Required] HTC: Sensation XE XL/Thunderbolt/EVO 3D/EVO 4G/Incredible S/Evo Shift 4g. Samsung: Galaxy S 2/Epic 4G/Galaxy S 4G/Galaxy Nexus .Blackberry: Curve/Storm 2/Tour Style/Bold . Motorola: Atrix/Bionic/Droid X, X2, 2, 3, 4, Pro, R2D2/triumph. Nokia: N900/N8/N97/C6/C3 C7/E7/X6 .LG: Optimus, 2x, V, S, T/Quantum/Vortex . Sony: Xperia ARC Arc/Neo/Play/Mini. Amazon: Kindle Fire, and all other kindles, Others: Nook Color, NDS, Portable Wi-Fi, PSP. etc. Package Includes: 8400mAh Yubi power bank, User Guide 30 pin connector for Apple devices, Micro/mini usb connector, 2 Usb ports.