With 12 automatic therapy modes, the Omron HV-F128 can easily be set to offer either pain relief or muscle stimulation at the touch of a button. Features Relief of pain Management of muscular injuries 12 Automatic therapy modes LCD panel shows frequency and time remaining of therapy High frequency stimulation to relieve pain quickly Single channel device * Your health professional will advise you whether this product is suitable for you/ your condition. Always read & follow the instructions for use & health warnings. If symptoms persist, talk to your health professional. Do not use with any electronic medical devices e.g. pacemakers.