1- ultrasonic compaction mode is warmer to use, and its principle is to repair the muscle base by ultrasonic wave and stimulate collagen regeneration; 2- EMG lifting mode, when used, the current sense is weak, which is mainly used to tighten the skin contour and dilute wrinkles, such as decree lines and Sichuan lines, and can be used in neck and shoulder positions; 3- Fat burning and slimming mode, which can feel warmth and vibration when used, is a mode that acts on the whole body and plays a role in reducing fat.