This massager soothes sore, tight muscles in the neck and shoulders with compression techniques favored by massage therapists. Twelve air bladders--two on each side of the head, four under the shoulders, and six along the neck--expand and contract to increase blood circulation, loosen muscles, and relieve soreness. The massaging bladders are integrated into a 10"-thick air pillow that elevates and cushions the head and shoulders during the massage. A tethered remote allows you to focus the massage in one area, select from two massage programs, and set the massage duration to 10, 15, or 20 minutes. The unit can be used on a bed or in a chair and its hook-and-loop fastener strap wraps gently around your head to help keep it in place during use. Plugs into AC. 18 1/2" W x 15" H x 3 1/2" D. (7 3/4 lbs.)