... .,The ultrasonic helps to discoloration, and reduce the damaged area.2.,With its massage effects, it helps the skin to better ... .,It heals acne skin.6.The ultrasonic wave produces the temperature effect ,and helps to calm the nerve and has analgesia ... for inflamed and damaged ski.Other ultrasound machineBL- 350 5 IN 1 Ultrasound + skin scrubber + High frequency + diamond Dermabrasion + BioBL-302 High ...