The peninsula ultrasonic gun has a fourth generation. According to relevant public information, the so-called peninsula ultrasonic gun is actually an ultrasonic knife. The fourth generation TotalTIP ultrasonic scalpel was produced in the United States at the end of 20 13. Ultrasonic gun uses high-energy focused ultrasound as energy source, and uses the principle of sound waves to make human tissues (fascia layer, superficial fascia layer and dermis layer) produce reversible thermal freezing point, and then make the focused point generate enough heat for targeted therapy. One advantage of Peninsula ultrasonic gun is that it has two therapeutic handles, a classic handle and an ultrasonic gun, and five heads, each aiming at a different part. M4.5: Facial fat is less and loose. M3.0: facial fat accumulation, drooping and double chin. D4.5: The facial fat is less and drooping. D3.0: facial fat accumulation, drooping and double chin. D2.0: Head-lifting pattern, Sichuan character pattern and fine lines around the border. Facial fine lines, mild to moderate skin relaxation, unclear jaw line. The skin of the neck is slack and the neck is lined.