The Thumbs Up! Dual Power Bank is a powerful portable solution for charging your devices. Boasting a massive 6600 mAh power capacity, enough to fully charge your smart phone more than 3 times over, it provides hours of additional usage for your tablets, smart phones, mp3 players, eBook readers & many more. The Dual Power Bank is compatible with almost any USB device and can even charge two gadgets at the same time. Charge your phone and camera simultaneously on your next holiday! The small, compact Dual Power Bank is made from aluminum alloy with a sleek high gloss finish. An LCD screen displays the percentage of power remaining in the unit so youll always know if it needs to be recharged. The unit includes a USB cable, protective pouch and 3 connectors: Micro USB, Mini USB and an Apple charger for iPhone 3/4 and iPad 1/2/3. To charge your device, connect your existing USB cable directly into the unit or use one of the connectors/cables provided. Compatible devices include: Kindles, GPS Devices, Mp3 players, tablets, digital cameras, iPads, iPods, iPhones and most smart phones.