The CM5149 is most happy when there is sunshine as this power bank has a solar part to be charged and return this energy to your smart phone for example. Next to this the CM5149 is made from bamboo which is a fast growing wood and thus sustainable. At the front side the power bank can be engraved which gives a very unique way to show your logo or text with backlight. The capacity is 10.000 mAh, Input 5V/2A, and Output 5V/2A with 1 USB port, 1 Type C port and 1 Micro USB port. On top of the solar panel, the bamboo material the printing on the power bank will be done with soy ink. The packaging is made of recycled paper and also printed with soy ink. Functional ~ Quality ~ Useful and eco together for the perfect gift nowadays! Produced under GRS (Global Recycled Standard 4.0) for the manufacturing, packaging, warehousing and trading. Certified ESTS on March 9th 2022