Roseland Stylish Aluminum Slim Power Bank, UL certified high capacity aluminum slim power bank. Compact design is made of sleek aluminum. Includes a micro USB charging cable and a user`s guide.^Specifications:^UL certified battery^Power output: 5V/1A^Power input: 5V/1A^ Capacity:4000mAhItem Size: 2.68 x 0.40 x 4.53 inchImprint Area: UV Full Color One Side 4.30 X 2.20 inch