Tenergy 14W Dual USB Port Outdoor Solar Portable Foldable Charger with Smart Detect Technology for iPhone, ipad, iPods, Samsung, Android Smartphones, GoPro Hero 3 4 3+ 4+ Waterproof Action Camera etc Keep your phones, cameras, even tablets charged with the power of the sun. 14W powerful solar charger provides up to 5V 2A power, dual USB ports charge two devices at a time. Smart Detect Technology, detects your device to deliver its fastest possible charge speed up to 2A under direct sunlight. Compact size (11"x6.9" folded, 34.6"x11" opened), easy to use, and well placed eyeholes on the panel allow easy attachment to backpacks and tents Ultimate weather-resistant durability - made with premium materials and designed for heavy-duty outdoor use