TENS PAIN MANAGEMENT - The Compex TENS program helps to decrease the intensity of pain and increase motion and functionINCLUDES 4 PROGRAMS (2 Strength, 1 Recovery, 1 TENS) - Features 4 Essential Programs that can help build Strength, Endurance, and battle back against sore musclesINCREASE EXPLOSIVE STRENGTH - The Resistance, Strength and Explosive Strength programs are designed to activate fast twitch, Type II muscle fibers (think power and force). By applying Compex technology to your muscles, you can increase explosive strengthSPEEDY MUSCLE RECOVERY - Utilizing Compex Recovery Programs allows fresh oxygen and nutrients to be delivered to the muscles, helping to flush out lactic acid and prevent those aches and pains from DOMS (delayed onset muscle soreness)