The Lumiscope Hot/Cold Massager is designed for use by individuals with neurological, muscular, and physical disabilities. The unit provides heated massage at 119 degrees Fahrenheit or cold massage at 39 degrees Fahrenheit. The unit features a swivel head for reaching a variety of areas and a choice of four massage surfaces for selection of intensity. A high/low switch also regulates the vibration. POWER: Uses the built-in rechargeable battery for one hour or the included alternating current (AC) adapter.