Electrotherapy Stim Machine... Drug-free pain relief with no side effects, TENS machines are physical therapy equipment that can help reduce & relieve muscle & joint pain without the side effects associated with medications. Immediate muscle pain relief..Prescription Strength Pain Relief... InTENSity TENS Machines lets you use 2 or 4 electrode pads to get the most benefit from your electrotherapy sessions. Large buttons & display make this TENS unit simple to use and leading back pain relief devices.Electric Massager TENS Unit... A dual channel tens device with pre-set body part specific programs. The TENS machine includes back pain relief mode, neck pain relief mode, shoulder massager pain relief mode, and leg/arm & foot pain relief modes..TENS Therapy is a drug-free pain relief electric shock therapy for muscles often used as a muscle stimulator for chronic pain management, muscle pain or to aid the healing process of injuries. Electrical impulses stimulate the nerves to reduce pain..Get Pain Relief Now... The TENS unit muscle stimulator comes with everything needed for TENS Therapy. Common uses of the device include: carpal tunnel relief, tennis elbow treatment, diabetic pain relief, or as a electronic muscle massager.