Ultra-thin metal charger-as thin as 7mm, thinner than iPhone, easy to carry. The ultra-thin metal power bank is equipped with a high-quality smart chip, which automatically recognizes mobile phones and tablets, and does not need to be pressed. The card-like design and thin thickness make it easy to put it in a wallet or pocket. The ultra-thin metal power bank is made of high-strength compression alloy steel. It has successfully passed the 2 ton compression test. It can withstand high-strength collisions and is not easily damaged. It is safe to use.