Keep your smartphone charged up with the Amp 2,200 mAh/8.14Wh Power Bank. The Li-Ion Grade A battery and 5V/1A output provide an additional eight hours of talk time. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other 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 7121-94 Amp Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.