ECEEN Hiking Backpack, 7 Walls Solar Panel Charge for Smart Cell Phones and Tablets, GPS, eReaders, Bluetooth Speakers, Gopro Cameras Nylon+Poly SOLAR CHARGER BACKPACK (7W) - Enjoy free unlimited on-the-go power with the ECEEN? solar charger backpack - perfect choice for any outdoor enthusiast. It comes with plenty of pockets & compartments for maps, documents and essential gear. Perfect for backpacking, trekking, mountaineering, fishing or biking, it is made of high quality. 7 WATTS HIGH EFFICIENCY SOLAR CELLS - SUNPOWER made-in-the-USA solar cells, with 22% transfer efficiency, are built into a protective anti-scratch hardened coating & sewn into high-wear PVC fabric for weather-resistant outdoor durability. CHARGE A VARIETY OF DEVICES - Charge your device directly through a 5V USB port, The removable solar charger with Voltage Stability Controller, for GPS systems, MP3 Players, Bluetooth Speakers and more! Ultra-Light. Ultra-Durable. Ultra-Awesome - The backpack is perfect for day-to-day use or occasional travel, and great gift for any age. It's made from rip and water resistant fabric, and provides strength and long-lasting performance, with minimal weight. Stress points are reinforced with bar tacking for increased longevity. NOTICE & PACKAGE CONTENTS - This item without BATTERY PACK; The package include ECEEN Solar powered backpack, 7Watts solar charger panel, 1 set User manual and 1Pc micro-USB cable.