5 In 1 40k Cavitation Machine. This is a professional 5-in-1 40k Cavitation Machine Ultrasonic Radio Frequency & Vacuum for Fat Loss. If you’re not familiar with these devices do a YouTube search under cavitation machine for fat loss. This uses cavitation, radio frequency & vacuum methods to work. Some people who are more sensitive notice the high frequency sound which my wife did so didn’t use it much. The little we did showed some results. So that was cool?? We have the electronic. Pdf we can send to whomever buys this and there are great tutorials and resources on YouTube as well.