Idea: Hours of power. Anytime, anywhere. Give your mobile devices a boost of power anywhere you go. The Kensington Portable Power Pack is a rechargeable battery to power and charge any USB mobile device. It's safe to use anywhere even on airplanes. Features * Rechargeable battery pack for back-up power for mobile devices * Enjoy up to 55 hours of extra iPod music play time, up to 14 hours of iPod video play time, up to 5 hours of mobile or smartphone talk time * Power and recharge your mobile or smartphone, iPod, MP3 player, PDA and other mobile devices anywhere you go * Flexible recharging of Power Pack via notebook USB port or included wall adapter with USB charging cable * Included Mini-USB cable to charge devices like MotoRazr, MotoKRZR, Rim Blackberry * LED battery gauge tells how much power is left in your Power Pack * Also works with Kensington USB Power Tip pack with retractable USB cable Specifications * Battery Chemistry: Lithium-Ion Polymer * Certifications: cULus, CE, FCC * Input: 5VDC (Mini USB) - 1.00A Max -- Output: 5VDC (USB) -- 1.50A Max. * Capacity: 1800mAh, (7Wh) Warranty Portable Power Pack for Mobile Devices is backed by the Kensington 2-Year warranty.