Specifications1.Item Name: 35L Terylene Solar Backpack for Outdoor Traveling Hiking Camping2.Item No.: SS-SBP0013.Solar Panel: 6V 6.5W4.Solar Panel Size: 155*302mm5.Transfer Rate: 22%6.Bag Capacity: 35L7.Material: terylene8.USB Output: 5V 1A9.Size: 550*360*230mm10.Weight: 1340gPacking Content1. 1pc solar backpack2. 1pc 6.5W solar panel3. 1pc USBFeatures1.Long lifespan,Website:http://www.sunnysamsolar.com, green power, environmental protection.2. It is lightweight and potable and with fashion.3. It is made from highly rip and water resistant fabric, provide strengthen and long-lasting performance.4. 6.5W high efficiency solar cells which USA imported, 22% transfer in a protective anti scratch hardened coating sewn into high-wear PVC fabric for weather-resistant outdoor durability.5. Solar panel is removable when you don? need it. It is easy to remove or put it on the backpack. Solar panel can be use separately.6. Multifunctional solar charger, it can charge android phones, MP3 MP4, bluetooth, headset and other digital products.7. Perfect for traveling, fishing, hiking, camping and other outdoor activities.8. The USB output is 1000mA 5V.How To Use    Just need to contact your cell phone or ipad to solar panel,and keep the solar panel be touch with sunlight all the time, then charge the cell phone about 2-3 hours. You can use it for iPhone, android, ipad, charging treasure, flashlight, fishing light and so on, please notice keep the voltage at 5V. Solar panels can directly into electricity, but can not store electricity. Solar Panel is waterproof, but you can not make it in rain all the time, because it is energized. Solar panels is durable and bendable, so do not worry it will broken.