Get our premium bamboo power bank 5000 mah environment friendly for activities.5,000 mAh, external auxiliary battery in nature line, with shell in bamboo, from natural cut bamboo pieces. USB output and type-c input -cable included.Wide printing area and in compliance with the following safety requirements: Power bank overcharge protection system. Complete discharge protection system, which increases the durability of the power bank. Blocking system to prevent short circuits.