Omron HV-F013 TENS Electronic Pulse Massager OMRON PocketTens is a powerful and portable TENS machine that fits in your hand. Block pain message The electrical pulses move through the skin to nearby nerves, blocking out the pain message from reaching your brain. Release endorphins The electrical pulses stimulates an increase in the production of your body s natural pain killer endorphins. Improve blood circulation The electrical pulses cause your muscles to contract and relax. This repeated contracting and relaxing, improves your blood circulation. Features: OMRON PocketTens is pain reliever that helps you to relieve pain in joints and muscles. PocketTens is small, safe, easy to use and it can be used discretely anywhere. Features 3 pre-set pain programs (arm/shoulder, lower back and leg/foot) and 2 massage like modes (knead and steady) each with 10 adjustable levels of power intensity to help relieve pain in different body parts. Suitable for the areas of your body that most commonly experience pain back, shoulder, joints, legs, arms and feet. Includes durable Long Life pads (1 pair) that are reusable up to 150 times. Includes plastic holder for storage. TENS is a clinically proven technology widely used by physiotherapists and pain specialists. It helps to block the pain message, trigger the release of endorphins and improve blood circulation.