The DOUBLE power bank with the capacity of 8000 mAh has the possibility of wireless charging and simultaneous wired charging of two other devices (via micro USB and C-type USB). The power bank itself can also be charged wirelessly. The product complies with relevant European Union Directives, has a CE marking and a 1-year guarantee. Micro USB charging cable included. Technical specifications: - input: 5V/2.1A, - output: 5V/2.1A, - wireless reception 5V/750mA, - wireless output 5V/1A, - lithium-polymer battery, - overheat, overload and overvoltage protection NOTE: Please wait approx. 1 min after connecting the device in order to stabilize the electromagnetic field.