Developed by a fitness instructor and licensed massage therapist, this is the handheld massager that kneads out painful knots embedded in the myofascial tissues surrounding muscles. It has three different treatment modes including vibration massage and percussive massage. Safe for use on nearly every part of the body including the neck, back, shoulders, arms, glutes, hamstrings, and feet, the massager has two bonnet covers for over-clothing treatment, treatment directly on skin, or without lotion. Recommended for up to 10 minutes per body part twice per day. AC plug with 12' cord. 9" L x 7" W x 7" D. (4 1/4 lbs.)