... 40,000Hz ultrasonic, after entering the body, will make the fatty cells produce mighty cracking effect ... when the ultrasonic vibrates, there will bring mighty impaction among cells, fatty cells will be less, so get effect ... returns..FEATURESFree operation, . non-anaesthetic. No ruggedness. No bleeding, tumidness and bruise. No side effects, good effects, no rebounding phenomenon. Woundless, will not ...