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 Conductive Reusable Pads. No more cable mess after use with fastening cable ties. A quick and easy solution for tens lead wires management. Hassle free storage system for the tens massager and wires. 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. A/B Dual Channels with 24 Modes, 20 level Intensity and Time Control. relax Any Time Anywhere with Pocket Size! You can operate it with different intensity settings for each channel. With portable size, it can be used in the office, car or travel on the go.Total body relaxation: use for back, knee, shoulder, ankles, wrist and elbow and make this the most powerful weapon for your body relax. Built in Powerful Rechargeable Lithium Battery-- up to 20 Hours of Continuous Use. It 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.