The TENS 3000 unit provides non-invasive, drug-free electrotherapy for the treatment of joint and muscle pain. It delivers painless electrical impulses that target the nerves and help relieve pain. Great for a multitude of injuries including whiplash, muscle pain and stiffness, joint pain, herniated discs, sprains/ strains and more. Helps speed recovery time from injury. Provides clinical level therapy at home. Prescription only.