Fully Isolated Dual Channels with Independent 24 Modes, 20 level Intensity and Time Control. You can operate it like two separate tens machines at once. For example, you are treating some pain around your shoulders. You’re also struggling with some aches in your lower back. With this nifty muscle stimulator, you can treat both at the same time but run different programs and settings for each. Multi-functional Tens Massager with 24 Preprogrammed Massage Modes for Pain and Muscle Relief. TENS unit could 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. It’s also used as a method of pain relief during labor. Tens muscle stimulator is a powerful weapon in your fight against chronic pain. Non-Invasive, Non-Drug Choice for Relieving Pain. Great Device You Can Use at Home for Pain Management. If you have chronic or acute pain, just trying Belifu TENS massager for relief. It is with human body simulation technology, microcomputer intelligent control technology, simulates a variety of massage methods. Help for treating back pain, arthritic or inflamed discs/ joints, shoulder tension and muscle Relief. Free Hard Cover Organizer Bag, Reusable Fastening Cable Ties and 10 Pcs of Self Adhesive Conductive Reusable Pads. The travel case is made with 360°protection hard quality EVA material which is semi-waterproof, shockproof, dustproof. No more cable mess after use with fastening cable ties. A quick and easy solution for tens lead wires management. Built in Powerful Rechargeable Lithium Battery-- up to 20 Hours of Continuous Use. Tens Machine can be connected to wall charger, power bank or laptop USB port to charge. Don't worries about treatment interruption for dead AA batteries any more. With battery level indicator remind you charge timely.