120v Only. The Professional Palm Massager Is A Percussion Massage With Soothing Heat Designed For Various Area Of The Body Ideal For Post Sport Use Relax With Pinpoint Massage For Targeted Relief Of Areas That Carry Stress Such As Shoulders And Lower Back Simple And Lightweight Design Variable Speed Control Up To 2 200 Pulses Per Minute 3 Attachments For Customized Use: Spot Heat And Contour