Gomadic SunVolt Powerful and Portable Solar Charger suitable for the Samsung Galaxy Note 10.1 Tablet - Incredible charge speeds for up to two devices Specifications: Dimensions: 13 x 12 x 1.5 inches. Weight: 4 lbs. Panel Rating: 10W. Charging ports: 2. Circuit Design: Samsung Galaxy Note 10.1 Tablet specific. 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 Samsung Galaxy Note 10.1 Tablet. Includes a direct charging connection designed specifically for the Samsung Galaxy Note 10.1 Tablet and a universal female USB port for a second device. A specially engineered power regulation circuit is the electronic brains of the SunVolt system. Extremely compact and benchmarked at a very high 90% efficiency, the circuit is carefully designed to make sure the power from the sun is converted into usable energy and not wasted on electrical overhead. The SunVolt exterior has four Neoprene non-slip pads to keep the panel from slipping or shifting while charging.