EnerPlex KR-0002-BK Kickr II Portable Solar Charger for Smartphones, MP3 Players, Mobile Devices, Black Our Kickr II is a 3 watt Ultra lightweight and flexible solar charger that will charge USB enabled devices at half the rate of a standard wall outlet. Manufactured with the world's most awarded solar thin film solar technology, one of time magazine's top 50 inventions Extremely durable- literally "bullet-proof" even if the solar panel is punctured the Kickr II solar charger will continue to produce power Weighs less than a pound. The panel can also be removed from its nylon carrier making it an Ultra lightweight solution Weather resistant/ easy to attach to backpacks, tents, bicycles, Golf bags and more.