OKSPAE 3 in 1 Ultrasonic Fat Cavitation Machine. Convenient? It can be used at home or enough to be used in a professional spa. Wrinkle Removal and Firming? Multi-head massage of the skin releases skin cells and promotes rapid synthesis of collagen by fibroblasts, thus stimulating skin muscle tone, enhancing skin elasticity, eliminating facial wrinkles and tightening the skin. 3 in 1? Equipped with 3 different massage heads, a complete set of programs for all skin types and body parts to meet the needs of body care, skin tightening, fat reduction, metabolism boosting, etc. Function upgrade? Frequency tracking function has been added to the machine, which automatically adjusts the ultrasonic frequency change caused by electrode wear and reduces the problem of ultrasonic frequency change caused by electrode wear. I used this machine twice. I have tinnitus and this machine does cause a temporary ringing in the ears. It goes away as soon as you’re finished. I couldn’t handle both.