KINGSOLAR Solar Panel 7W 5V Folding USB Output Portable Solar Charger for All USB Compatible Devices (Black) KINGSOLAR Solar Panel have amazing efficiency: Constructed of mono-crystalline solar arrays, up to 18.5% efficiency, easier and faster to replenish juice for your 5V/1.4A hungry gadgets Ultra-compactWith folding size 6.50*10.04*0.35inch and unfolding size:13.11*10.04*0.04inch 0.84lb 24 hours customer service and 12 months worry-free product guarantee for every comsumer from KINGSOLAR Mono Solar Cell and high quality material of Waterproof cloth.eyeholes provide you convenient to attach your backpacks while on the go Apply to phone,Samsung Galaxy, PDA, MP3, MP4, PSP game console, digital cameras, GPS, Blackberry, mobile DVD, Bluetooth headset and any 5V USB device(Attention:Because of apple device's special inner protection electricity microchip design,once sunlight is not enough or unstable,this solar watt may cause too low to charge apple device.)