NEED PRESCRIPTION STRENGTH PAIN RELIEF AND MUSCLE RECONDITIONING RELAXATION? Safe and Effective - 9 Auto Stimulation Programs, Fully-adjustable Speed & Intensity, 6 Selectable Massage Settings, High-Frequency Pulses to Provide Pain Relief. -THE PACKAGE INCLUDES: 1 control unit; 4 sets of dual leads wires; 4 pair of inserted pin electrode pads (8 pcs pads); 1 pads holder 3 AAA batteries; 1 Application placement chart; 1 User Manual OVER 1M HealthmateForever TENS AND POWERED MUSCLE STIMULATORS SOLD: over the counter (FDA OTC class II cleared) TENS and PMA provides immediate and lasting drug-free nerve stimulation for pain relief and muscle stimulator for reconditioning relaxation from back pain, neck pain, tennis elbow, knee pain, leg pain, ankle pain anytime anywhere. A LEADING COMPANY IN DESIGN WITH ITS OWN PATENT AND COPYRIGHTS SINCE 2010: A TENS & PMS device among medical professionals for delivering drug-free back pain relief as well as treating common ailments like neck pain, carpal tunnel relief, arthritis, shoulder, knee, elbow, leg and foot pain GET IMMEDIATE PAIN RELIEF: TENS & PMS machine comes with 15 therapy modes that will provide instant both nerve & muscle pain relief. An electrotherapy machine with everything needed for TENS therapy. 2ND VERSTION FEATURES: 15 modes, easy to select the right button to help pain relief, belt clip makes it portable. High Intensity - 4 outputs can output the same 20 levels of intensity, no matter you use 1 output or 4 outputs at the same time without dividing the strength by 8 pads.