Design inspired 4400mAh power bank with input power of 5V > 1 Amp and output power of 5V > 1 Amp. It has a power gauge and a built-in torch. 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.