ADJUSTABLE NECK MASSAGE: It features 4 unique neck massage nodes that deep tissue massages the neck and shoulder to relieve tired & muscle tightness. Massage nodes can be adjusted up & down to the height that allows any member of the family to use this massager. It is suitable for people between 63 inches - 70.9 inches (1.6m-1.8m) height. The shiatsu balls with optional heating -function soothe your muscle & enhance blood circulation. SHIATSU BACK MASSAGE WITH HEAT: The back massager features 4 shiatsu massaging nodes travel up and down relaxing your entire back. 3 MASSAGE ZONES for your choices: Full Back, Upper back & lower Back. SPOT MASSAGE function allows you to concentrate the kneading nodes on specific area for pin-point relaxation. The Shiatsu nodes with optional heat function adds gentle warmth to soothe muscle pain. The detachable INTENSITY CONTROL FLAP allows you choose a softer or stronger massage. ROLLING BACK MASSAGE WITH ADJUSTABLE WIDTH: The soft rolling massage along the spine combats muscular tension and offers soothing relaxation across the whole back, and with adjustable the width of the massage nodes to custom fit the body. VIBRATION SEAT MASSAGE: The 2 adjustable levels of intensity provides you a comfortable massage to Hips and thighs. ULTIMATE COMFORT: Use this massage cushion on a sofa, couch, recliner, office chair or dinning chair to make the ultimate comfort seat in the house. The integrated strapping system secures it on chairs in place . UL approval desktop home adapter is included, the adapter is safe to use with both 110-120V & 220-240V electrical outlet.