Omron HV-F127 TENS Therapy Device Compact in its design, the Omron HV-F127 is a simple to use TENS (Transcutaneous Electronic Nerve Stimulator) device. With one touch operation, a user can easily select one of the 9 automatic therapy modes. The development of Omron’s Long Life Pads means that no messy gels are required to use this device. Product Features * Relief of pain * Management of muscular injuries * 9 Automatic therapy modes * Low frequency stimulation to relieve muscle tension * Single channel device *Do not use this device in combination with electronic implants such as pacemakers.