8 Modes TENS Device Muscle Stimulator, Rechargeable TENS Machine with 4 Electrode Pads, Electric Pulse Massager for Pain Relief Therapy POWERFUL PULSE TENS MACHINE - TENS unit sends electrical current through cables to pads on your skin to relieve body pain such as back, knee, shoulder, neck and elbow pain; improves sports injuries, arthritis and sciatica; stimulates Muscle, improve blood circulation, relieve fatigue, improve immunity, improve sleep quality 8 preset massage modes Tuina, Shiatsu, Kneading, Vibration, Squeeze, Ear rubbing and other options help to relieve body pain sensations such as sciatica, arthritis or disc/joint inflammation, stiff shoulders, lower back pain, steps Etc., relieve body stress and pain, make the body healthier and more energetic Dual Channel Pulse Massager Small and safe pulses are transmitted through two sets of electrode pads (4 electrode pads at a time) placed on the skin at the same time, each time for 15-20 minutes, you can not only get the benefits of pain relief, but also stimulate you muscles and improve your health LED Display - LCD backlit display, adjustable timer (10-60 minutes) and 15 levels of pulse intensity, 4 self-adhesive reusable pads, no gel required. Products include: 1 x EMS unit controller 4 x electrode pads 1 charger 2x output lines Comment: Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. thank you for your support :)