This sleek and slim credit card size design allows for you to take this power bank anywhere without the added weight. With 2,500 mAh Lithium Polymer battery and a 5V/1A output you can charge any smartphone at the same rate as a wall charger. Includes a USB to Micro USB connecting cable which can charge the battery backup or be used to charge devices with a Micro USB input like Android smartphones from Samsung®, Motorola®, HTC®, Nokia®, and others. This product is also available with a custom wrap for the packaging. See 7121-91 Slim Ion Power bank with Full Color Wrap