Features: High quality external emergency charger. Easy to use, just plug and charge. Designed with a LED light to work as a torch. The charger itself doesn't need to be charged, it is powered by two AA batteries. (Batteries are not included in the package). Designed with a USB interface, supports all devices that get charged via USB cable, such as MP3/MP4 player, cellphone, iPod, iPhone, etc. Mini size and ultra-light weight, easy to carry around. Specifications: Color: Black Input voltage: 2.0-4.2V Output: 5.0V, 500mA (standard as the computer USB output) Power supply: 2 * AA batteries (Batteries are not included) Item size: 8.2 * 3.6 * 2cm / 3.2 * 1.4 * 0.8in  Item weight:  23g / 0.8oz Package size: 8.5 * 3.6 * 2cm / 3.3 * 1.4 * 0.8in Package size: 24g / 0.8oz