This Ultrasonic Massage Beauty Apparatus can be used on almost any part of your body...as long as you bear the extra weight. Common treatment areas include the stomach, thighs, buttocks, or back. Using low-frequency sound waves, it helps reduce inches without causing physical trauma. Fat cavitation therapy uses low-intensity ultrasound to break down fat cells into liquid while keeping surrounding tissues intact. At most, when ultrasonic cavitation passes through the skin, you will feel a gentle warmth. Each fat cavitation treatment only takes 20 to 60 minutes, which is the perfect lunchtime treatment.