【Wireless knee massager】Massage knee heating pad with vibrating core that can simulate real kneading. Instead of constantly staying near a socket, you can carry it anywhere you like. You can wear it for working, studying, sleeping, doing housework, etc. 【3-in-1 massager】The heated knee bandage with massage is not only used for knees. Our knee heating pad is equipped with extension straps so you can warm your knees, shoulders, elbows, arms, thighs and calves. Features: .