Powerbank People Professional Power banks in the shape and design of real professionals. Of course you are able to customise the design on request. The capacity of the A-grade Lithium Polymer battery is 2600 mAh. Features include built-in protection functions to stabilise the output voltage, prevent over charging and short circuit. Suitable for charging most devices, smartphones including iPhone, Samsung, HTC, Blackberry and Nokia. Includes USB to Micro USB charge cable and user manual. (smartphone not included).