On one charge, the Powermonkey discovery fully recharges an iPhone® twice, handheld game consoles for up to 10 hours or most cell phones three to four times. Enjoy up to 120 hours of music on your MP3 player! Compatible with most 5-volt devices. Features built-in voltage sensor to regulate required charging voltage. Integrated lithium-polymer battery recharges in eight hours or less from computer USB port. Precision-engineered aluminum casing. Includes: Powermonkey discovery unit; eight device-specific tips; Mini- and Micro-USB tips. iPhones and iPods® require USB sync/charging cable (not included). One-year standard manufacturer’s warranty. Dimensions: 4.5"H x 1.81"W x .5"D. Weight: .23 lbs.