Pocket Harness the Sun's Power on Any Given Day Ivation's high-efficiency solar power pack is designed with the modern gadget-owner in mind. Incorporating technologically superior solar cells that pack quadruple the power of their conventional counterparts, this pack drinks in every bit of sunlight it is exposed to even on cloudy days. What's more, it works even through glass like a car windshield. It then automatically converts the energy into available electrical power that can be used to charge a wide range of electronic devices. Smart Chip Technology for Direct Charging While many solar panels require complex wiring or other apparatus to utilize the power from their cells, Ivation's solar pack features a smart chip design that's built right into the lightweight, foldable package and regulates the output through 2 USB ports. Simply connect cellphones, smartphones and other personal digital devices with a standard USB cable, and enjoy direct, rapid charging! It is powerful enough to rejuice most portable digital devices,and can even charge two devices simultaneously. The Ivation solar pack marries tomorrow's technologies to the simplicity and practicality you need today. Unfold the pack, and you'll find a neat sun-proof pocket made of UV protectant material. This lets you charge your digital device without exposing it to the intensities of direct sunlight. Another nicety is the hanging eyehooks that make it a breeze to hang on a backpack, in a car window, etc. Couple that to the enclosure's waterproof, dustproof and shockproof properties, and the Ivation solar pack becomes a mainstay with your gear for trips, hikes and other adventures. Other Technical Specifications : - Solar Panel: 5.5V/18 Watts - Max Output: 5V/3A - Net Weight: 1.9 Lbs. - Folded Size: 10.5 X 6.5 X 1.0 Inch - Unfolded Size: 26 X 10.5 Inch