External auxiliary battery made from a combination of bamboo and wheat straw. With a charging capacity of 5000 mAh and Type-C input/output connections plus a USB output. Features a button and LED charge status indicator, and is presented in an individually designed eco box made from kraft cardboard. Materials such as bamboo encourage the use of natural raw materials, reducing pollutant emissions. It comes from a highly resilient and versatile plant, which grows and regenerates quickly, making it an excellent alternative to traditional wood. Wheat straw favours the use of natural raw materials, thus reducing pollutant emissions. The capacities shown for all our power banks are real, each incorporating grade A, non-recycled batteries with a lifespan of at least 500 charging cycles and conforming to CE regulations. Furthermore, they are manufactured according to RoHS standards and comply with the following safety requirements: Power bank overload protection system. Full discharge protection system for longer durability of the power bank. Locking system to prevent short circuits. Constant charge transfer system, according to the capacity of the target device. Locking system to prevent short circuits. Constant charge transfer system, according to the capacity of the target device.