Hiking Solar Power Backpack with built-in portable power of high capacity Charing output: 3.7V/1600mA CE / ROHS Certificate Imagine your cell phone is power off when you are alone in a unfamiliar area;Imagine your baby daughter is trying to get through to you but at this time your cell phone is power off;Imagine you are anxious and you need music but your MP3 is power off. For all this,you just ...
