The sleek design and silicone band allow for easy portability of the UL Listed Zoom® Energy Rally Power Bank. This battery back up packs a 6,000 mAh Grade A Lithium Polymer battery with dual 5V/1A outputs. The silicone band wraps around your phone to keep it attached to the top of the power bank. The power bank will also charge a tablet by automatically changing the output current from two 5V/1A outputs to one 5V/2A output. Includes a USB to Micro USB connecting cable which can recharge the battery backup or be used to charge up devices with a Micro USB input like Android Smartphones from Samsung®, Motorola®, HTC®, Nokia®, and others. This product has passed UL 2056 testing. .