Used once for about 5 minutes. There is no instruction manual, but you can download it from the Aderans website. The outer box has some scratches. You can care for your face, décolletage, and head at the same time! Just glide it over the areas you're concerned about. Born as a home care version of the machine also used in the Aderans Scalp Up Program. Equipped with triple functions of EMS, EP, and RF, and its brush-like shape makes it easy to use.