Powerful 6600 mAh battery pack for charging your iPhone, iPod, iPad, smartphone or USB devices. Once your regular battery becomes flat the battery pack kicks in to drive and charge your device at the same time. 1 x USB output port (1A) and 1 x USB output port (2.1A), Micro USB input port and power indicator lamp. Built-in rechargeable li-po battery. Battery pack charged via the included Micro USB lead. Size: 11x8.5x1.5cm. Non-original accessory.