Super Durable Waterproof and Shock Resistant Dual USB Solar Charger High Capacity Lithium Polymer battery.Charges iPhone and android based Smartphones; Solar energy technology Dual USB Charger Ports--2.1A output charge TWO devices at once! Waterproof, Dust-proof and Shock-Resistant It's the perfect companion for the great outdoors; Small and Portable--Compact design with a same size as an iPhone 6 and a handy hook, easy to hold in hand and hang on backpack.Take it with you wherever you go. Perfect for hiking, climbing and other outdoor activity. Environmentally friendly silica gel and ABS + PC materials and a rubber oil paint surface process Charge your cell phone, smartphone,ipod, tablet, mp3 player, gps device, bluetooth devices, and more!