With the outer design made of strong impact-resistant stainless steel, the front and back of the product are made from high-grade plastic material with fingerprint-resistant carbon coating and anti-fouling. - The product is super light weight & slim and light design makes it easy to put in a book bag or travel bag to take with you anywhere Uses Li-ion Polymer Battery technology with a lifespan of up to 1000 charges - Design up to 2 input ports is TypeC & Micro with 2 ports of 2.1A to help you recharge the device most convenient and the product has only 1 USB output port with a capacity of 2.1A support fast charging help save charging time
