Instapark MP1800U2 5,200 mAh External Battery Pack & Charger with Dual USB ports for iPad2, iPad, iPhone 4S 4 3Gs 3G, iPod Touch (1G 2G 3G 4G 5G), Motorola Droid, HTC Android Phone, Blackberry, Samsung Galaxy Tab 10.1, HTC flyer, and much more High-capacity 5,200 mAh polymer Li-ion rechargeable & portable battery pack, powerful enough to supply 50 hours of movie time on iPhone 4 or 17 hours on an iPad Built-in dual USB charging ports for simultaneously charging two devices such as iPhone, iPad and other USB compatible mobile devices Compatible with virtually all USB compatible cell phones, tablet computers, MP3 Players, digital cameras, handheld game consoles & etc. Compact size & light weight provide excellent portability Visual indicators identify power capacity level and status