Athletes and Performers have long benefited from clinically supported modalities to help relieve pain (TENS or Transcutaneous Electrical Nerve Stimulation) and improve muscle performance and recovery (EMS or Electrical Muscle Stimulation). You can too now with the iReliev Strength & Recovery Dual Channel EMS + TENS Combination Unit. FDA cleared for ease of use and safety, this highly innovative dual channel device offers 14 pre-programmed therapy modes making this system extremely easy to use and extremely versatile. The integrated TENS modes (P1-P8) generate a safe and effective output sensation that helps block pain receptors or increase endorphins, a natural pain reliever. The pre-set EMS programs (P1-P6) deliver rhythmic massage-like impulses that help increase blood flow to promote muscle recovery, strength and performance. Compact and portable, use iReliev on the go, at the gym or at home.