The 5200 mAh MAIS power bank is made of plastic. A flat square cover is decorated with a battery charge indicator which is shaped like a plus sign made from LEDs. Standard micro USB charging cable and users manual included. The product complies with relevant European Union Directives, has a CE marking and 1-year guarantee. Technical specifications: - input: 5 V / 1 A (micro USB port)- output: 5 V / 1.5 A (USB port)- battery capacity: 5200 mAh