The Infrared Massager Provides A Soothing And Relaxing Vibration Massage. You Can Alter The Massage According To Your Wishes Thanks To The 3 Interchangeable Attachments. Beurer Infrared Massager Mg 21 Provides Relaxing Vibrations That Soothes Muscles And Those Areas Suffering With Spasm. This Beurer Infrared Massager Provides Heat Also To The Muscles In Pain. One Can Also Alter The Intensity Or The Type Of Massage As The Beurer Massager Comes With 3 Interchangeable Attachments (2 X Nub Attachment, Brush Attachment).