Experience the difference with this 7 Inch Massager!The Contoured Head of the DUAL ACTION INFRA RED MASSAGERprovides Sensuous Infrared Heat. Infrared Heat is well known for it`s Therapeutic Value...It`s capable of Elevating the Body Temperature and Expanding the Capillaries which Stimulate Blood circulation! With Dual Controls. the DUAL ACTION INFRA RED MASSAGER may be used With or Without Infrared Heat! You can Feel the Differnce!!!Uses 2 `C` Size Batteries (not included)