Deep Shiatsu Massage: Massage nodes travel up and down the back of the cushion for a deep-kneading circular massage and total coverage Soothing Heat: Offers a heat option to enhance your massage experience; soothing heat comforts tired, tense muscles for complete relaxation Customized Comfort: Personalize your massage with optional heat and 3 zones to target your full back, upper back, or lower back Customized Comfort: Personalize your massage with optional heat and 3 zones to target your full back, upper back, or lower back