Come and see our amazing products. Designed to provide power to your smartphone, tablet, digital camera, MP3, MP4 and GPS device, this power bank features an intelligent MCU controller - during charging the red light stays on; during discharging the blue light stays on. Technical specifications: Capacity: 2200mAh, Lithium-ion battery cell, Input: 5V/0.8A, Output: DC 5V/1A and Cycle Life: more than 500 times. Pls confirm with us about the packing info, stock color and exact production time before placing your order.