Cupping. The v9 men's cupping device is used for cupping. It is mainly used in medical institutions and families for treatment and health care such as absorbing moisture, heat and cold, and dredging blood vessels. The cupping device consists of an electric negative pressure source, a conduit, a tank, etc. A negative pressure source is used to generate negative pressure in the tank, thereby adsorbing it on the muscles. Also called cupping therapy device and electric cupping device.