EMS functionality is great for Athletes because it improves muscle performance, strength and helps muscles recover and heal quicker. TENS helps to relieve muscle pain and soreness. Perfect as an Occupational and Physical Therapy aide. With 60 minute adjustable timers, the unit allows you to customize the length of your treatment session for the best results. An automatic shutoff function will prolong your battery life. Therapy Concepts has collaborated with orthopedics and experienced chiropractors to offer you the most genuine TENS & EMS experience at the comfort of your own home. All you have to do is simply use the handy and durable Tens unit massager and enjoy a refreshing and rejuvenating massage on your way to work, at home, or during your road trips with your family or friends! The 12 modes and 20 Intensity levels are will deeply penetrate your muscles and tissue, relieving you from pain and soreness our comfortable, compact and highly effective unit is ideal for relaxing tight muscles & knots on your: Upper and lower back. Shoulders, Neck, Thighs, Buttocks... Feet, Calves, Knees... Abdomen.