Ultrasound is the best function for fat reduction. The low-frequency waves damage the fat cells, so they liquefy. After this process, the fat can leave the body via natural processes. Use on a low intensity for face treatments.You can use the Ultrasound Mode in combination with the Infrared Mode - Infrared therapy is suggested for pain management, jaundice, eczema, wrinkles, scars, improved blood circulation, and to help wounds and burns heal faster.