3 in 1 Lose Weight Beauty Machine Ultrasonic Cavitation, Tripolar RF, Unipolar RF CE, SFDA, SGS, ISO Save Cost 3 in 1 Lose Weight Beauty MachineI. Parameters ... , an abdominal operation within three months, menstrual period, metal pieces in body (such as heart jumping devices etc).Do not ... do ultrasonic treatment under empty stomach, must be 1 hour later after dinning 3 in 1 Lose Weight Beauty Machine