ECEEN&reg; Solar Power Backpack Sun Charger Bag Pack With 10000Mah Waterproof Power Bank ChargerFREEFor iPhone 6 plus 5S 5C 5 4S 4, iPods, Samsung Galaxy S5 S4, S3, S2, Note 4 3 2, Most Kinds of Android Smart Phones, Windows Phone And More Other Devices 22% High efficiency-Sunpower solar panel (USA original) up to 7W with 1A output maximize; Comfortable and water resistant: Made of high quality Polyester+nylon+Sandwich Multifunctional-laptop/notebook backpack, pad, books, gadgets, keys; ideal for hiking, travelling and outdoor activities Waterproof 10000mAh Power Battery Pack, Sleek lithium polymer battery is lightweight & powerful, its fully charged by good sunshine or outlet are the same, and its around 8-10 hours, The battery can charge full 3-4 mobile phones Package items:Solar backpack, USB cable, User Guide, External battery pack