Gomadic SunVolt Powerful and Portable Solar Charger suitable for the Google Nexus 7 - Incredible charge speeds for up to two devices Unique, stylish, and high quality custom carrying case makes the SunVolt highly portable. Panel is held in place by a hinged, rigid inner shell that easily folds out and fits into one of several angle adjuster slots. Panel position can be easily adjusted for optimum performance. Powerful 10W Monocrystalline-based Solar Panel is strong enough to provide outlet-like charging speeds for the Google Nexus 7. Includes a direct charging connection designed specifically for the Google Nexus 7 and a universal female USB port for a second device. Specifications: Dimensions: 13 x 12 x 1.5 inches. Weight: 4 lbs. Panel Rating: 10W. Charging ports: 2. Circuit Design: Google Nexus 7 specific. Water resistant carrying case is made of high quality, 1680 densely stitched Ballistic nylon, which provides a durable and water resistant surface. Its padded and rigid inserts both protect and cushion the panel as well as any other inside contents, which you might be carrying. The SunVolt exterior has four Neoprene non-slip pads to keep the panel from slipping or shifting while charging.