Dual Channel TENS EMS Unit 24 Modes Muscle Stimulator for Pain Relief Therapy, Electronic Pulse Massager Muscle Massager with 10 Pads, Dust-Proof Drawstring Storage Bag，Fastening Cable TiesDescription Multi functional Tens Massager with 24 Preprogrammed Massage Modes for Pain and Muscle Relief. TENS unit help reduce pain and muscle spasms caused by a wide range of conditions including: arthritis, period pain, knee pain, neck pain, back pain, sports injuries. Tens muscle stimulator is a powerful weapon in your fight against chronic pain. Free Dust Proof Drawstring Storage Bag, Reusable Fastening Cable Ties and 10 Pcs of Self Adhesive