Multi-function 7W Solar Panel Powered Comfortable Breathable Casual Backpack up to 15'Laptop , External USB Charging Port & Earphone Port

1. Large capacity and multiple sections, good for laptops, tablets, magazines, books and etc.2. Comfortable handheld handle, less pressure on your arm while holding3. Adjustable shoulder straps, good for different needs4. High-density fabric, tear-resistant, wear-resistant and durable5. External USB charging port, simply connect the powerbank (not included) from inside and charge your mobile devices6. External detachable solar power board, single USB output, charge your phone and tablet while the sun is shining7. Solar power panels use Sunpower solar cells, which are much more efficient than ordinary solar cells.8. Power: 7W(Max)9. Output: 5.5V/1A(Max)