Relax tense muscles and stop the cycle of chronic pain with this FDA approved Electronic Pulse Massager. This compact, portable device works quickly by gently stimulating your muscles and nerves, blocking your body's pain signals so you can finally find relief. Great for back, neck, shoulder, leg, arm and even foot pain. Features 5 auto modes, 6 therapeutic massage programs and an easy-read LED display. Requires 4 AAA batteries (included FREE). 7-1/8" x 2-1/4".