I want to break down the differences between these two devices. The handheld device (our 3-1 device) is 1MHz as shown in the picture. This device is not as effective as the Ultrasonic Cavitation 40KHz Machine. Hence the difference in price $59.99 vs $200. The Ultrasonic Cavitation machine is the same strength that Medi-Spas use! Both models are effective but one is stronger and you will see results much faster. The hand held is a trending product right now and many people are mis-informed on this device! We want to be sure you understand the differences! Both are great products depending on what you are looking for.