Massage design on both sides of the waist, promote blood circulation and relieve waist muscle fatigue and back pain. – 3 Massage Zones which concentrate on your upper back, lower back or your entire back – Heat function to increase the massage effects and improve blood circulation – Spot and Partial Massage function for customized massage – Light and portable design – Programmed controller Dimensions 710 x 90 x 335 mm Weight 2.45kg Power Source AC100-240V