DESC: When your cell phone battery dies, bring it back to life — wherever you are — with a pocketsize Motorola® power source. Fully charged, it provides one to two full battery charges of your Motorola hand set or more than 10 full charges of your Bluetooth® headset. Plug it into the mini-USB port — no outlet, batteries or wires needed! Measures 3" x 2" x 1" and weighs 3 oz. Charge it up using your phone's USB charger. One-year warranty.