Thin 4000mAh power bank with a power gauge and a smart aluminium finish. The input power is 5V/1 Amp and the output power is 5V/1 Amp. It can be recharged in 5-6 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. Zion laser engraves to an oxidised white colour.