Solar Energy Power Bank
This is an eco-friendly power bank.
You don’t need to charge it the conventional way as it is fitted with tiny solar cell panels which allows it to be charged naturally via the sunlight. Cool eh?
On top of that, it’s waterproof. This means that you can leave it out in the sun for it to be fully charged and never worry whether it’s going to pour or not.
It’s appearance also looks cool. Looks sort of like a gadget used by Batman.