4.3W Monocry stalline Solar Silicon Panel. Green cean energy,protect environment.

With LED light to show charging status. The LED shows red when the solar panel is charging.LED indicator does not light when business bag leisure bag not charging or full.

The backpack has a built-in charging treasure which is used to store the energy collected by the solar panel and power the USB port.

Breathable honeycomb strap Ergonomic design Breathable and not stuffy. Thick elastic mesh pad up to 2CMGooc mountaineering bag flexibility, both transparent Gas and decompression shock.