?What You Receive? 1 x TENS Machine, 24 x Electrode Pads(16 x Palm type , 4 x Large Rectangle, 4 x Oval), 4 x Lead Wires, 1 x USB cable, 1 x User Manual, 1 x Acupunctrue point chart,1 x Pad Holder, 1 x Pouch, 1 x Hanging chain, our 12-month warranty and Professional Customer Service. For any product problem, please don't hesitate to email us. ?Rechargeable Lithium Battery?No longer have to worry about dead AA batteries.Built-in powerful rechargeable lithium battery, can be used continuously for 30 hours. It offers steady current that generate electrical pulses moving through the skin to nearby nerves to block the pain. ?36 Modes & 24 Long Life Pads? We use infrared principle and bioelectric principle to simulate 9 parts of the human body, 36 modes(Hand,Arm/Elbow,Neck,Shoulder,Back,Waist,Leg,Knee) can be closer to the acupoints of the human body, giving you a better massage journey.What's more,We provide 24 premium pads, the included electrode pads can provide excellent self-stick performance for up to 45 uses. ?A/B Independent Dual Channels? MOLLAN TENS Unit has independent dual channels,you can set separate modes and intensities for channel A and channel B. For example, you could choose beat mode in channel A with an intensity level of 7 for your back. While in channel B, the Kneading mode is being run with the intensity set to level 12 on your leg as a leg electric stimulator. ?Pain Relief and Muscle Strength Machine?If you suffer from arthritis, knee pain, neck pain, back pain, sports injury, menstrual pain,MOLLAN TENS Unit can effectively help you solve your worries.MOLLAN TENS uses TENS(Transcutaneous Electrical Nerve Stimulation) and EMS(Electrical Muscle Stimulation) technology.Help for treating back pain, arthritic or inflamed discs/ joints, shoulder tension and muscle Relief.