4 Outputs TENS Unit Muscle Stimulator for Pain Relief, Unlimited Mode (24 Modes with DIY) EMS TENS Stim Machine Back Pain Relief Products for Neck, Sciatica, Shoulder, Shock Therapy, 10 Pads Black-4 Channel

4 OUTPUTS FOR MORE CHOICES: Compared to dual channel TENS device, Comfytemp 4 channel muscle stimulator offers a wider range of pain relief. The pulse massager for muscles offers 24 preset modes (20 preset modes+4 customizable unlimited modes), and 20 intensities with adjustable time (10-60mins). The stim machine allows up to 8 pads at the same time, the independent A/B channel can work in different modes and intensities. DRUG-FREE & MULTI-FUNCTIONAL PAIN RELIEF: Comfytemp TENS unit muscle stimulator and back massager combines TENS and EMS therapies, which is a great device you can use at home for pain management. Professional back pain relief products for providing pinpoint lasting drug-free muscle pain relief from back pain, period pain, tennis elbow, carpal tunnel relief, arthritis, shoulder pain, knee pain, leg, and foot pain. Unlike other TENS units, Comfytemp provides users with multi-functional choices. UNLIMITED DIY MODE FOR MUSCLE PAIN RELIEF: TENS machine comes with a cu