Design inspired 4400mAh power bank with input power is 5V/1 Amp and output power is 5V/1 Amp. It has a power gauge and a three function flashlight with two different flash signals so it can be used as an emergency light. Optimus can be recharged in 4-5 hours from a USB port or a mains adapter. Comprehensive instructions and a Micro-B USB cable are included. An optional EVA carry case and a triple connector cable are available on request.