ALLPOWERS 16W Solar Panel Charger with iSolar Technology for Cell Phone, iphone, ipad, Samsung and Other Smartphones and Tablets Exclusive iSolar and Fast Charging Technology: It can automatically adjust the current and voltage to achieve maximum power, delivering its fastest possible current up to 2 Amp High Conversion Rate: PET Anti-scratch hardened technology, solar conversion effeciency up to 19%. Most panels in the markets are normally 15% or even lower Dual-USB Power: 16 watt monocrystalline PET solar panel provides enough power to charge cellphone and ipad at the same time; Great for any outdoor trips and activities Compact Design: Convenient eyeholes enable easy attachment to backpacks while hiking; PET laminated solar panels sewn into high-wear PVC fabric for weather-resistant outdoor durability Package Contents: ALLPOWERS 16W Foldable Solar Charger, hook, micro USB cable, instruction manual