Use What the Pro's Use. Get the Competitive Edge with On Demand Pain Relief, Muscle Strength & Performance Therapy. All in One Simple to Use Device. Great for Arthritis too! The iReliev ET-7070 Dual Channel Strength & Recovery System is an FDA cleared over-the-counter TENS Unit & EMS or Muscle Stimulation device used to relieve acute or chronic pain symtoms, increase muscle strength and performance. With iReliev you can get the same TENS Unit and EMS muscle stimulation technology prescribed by your...