The Pursonic HMG410 Shiatsu Heating Neck & Back Massager is build to relax and soothe back & neck area. Features: RELIEVE AND SOOTHES: Relives and soothes sore muscles and stiffness. Eases tension and fatigue caused by stress, post-workout muscle soreness and any body pain Caused by physical activity/everyday routines 4 DEEP MASSAGE KNOTS- Back massager 4 Powerful Deep-Kneading Shiatsu Massage nodes can relax and relieve pains on your neck, upper back, lower back, shoulders, waist, tights, calves, foot, legs and arms, back massager helping you release stress, relieve sore and tight muscles and get relief on your whole body BI-DIRECTION ROTATION Neck massager with built in Bi-directional movement control mimics the motion of in-person massage experience, the shiatsu massager will auto-reverse every minute for better distribution of massage effects and to provide more thorough treatment PERFECT FIT: Adjustable strap allows massager to be secured to a chair, fits perfectly behind your neck or back. HEATING FUCTION: the heat function gets your blood flowing circulating and its the ultimate relaxation.