Hi! The differences between Styles A, B, C, and D are not just the appearance. They are different working modes. For the RF head: the red light flashing pattern is different, so the heat feeling may also be different. Style A: red light flashes continuously Style B: red light flashes every 1 second Style C: red light flashes every 2 seconds Style D: red light flashes every 3 seconds For the cavitation head: the vibration pattern is different. Style A: continuous vibration Style B: vibration pauses for 1 second each time Style C: vibration pauses for 2 seconds each time Style D: vibration pauses for 3 seconds each time The main functions are the same, but each style gives a slightly different treatment feeling. 

RF treatments can tighten the skin. 

40K is louder and more affordable, while 80K is quieter and better for people sensitive to noise. 

40K is louder and more affordable while 80K is quieter and better for people sensitive to noise. 

We recommend choosing a product with high moisture content—such as essential oils, creams and lotions, skincare gels, or ultrasound gels. Any brand is suitable. 

Hello, It is recommended to use 40k cavitation head three to four times a week, and each time for about 10 minutes on one part. And It is recommended to use the negative pressure head once a week. If you have sha on your back after doing it, do it a second time after recovery. The radio frequency head can be used every day. It is ok if the skin is slightly red. It usually takes 10 to 15 minutes. Each probe must be used with products, essential oils, lotions, creams, and gels are all OK. Do not dry burn the probe 

Tripolar head: For use on the eyes or face, recommended duration: 30 minutes; Quadpolar head: For use on the face/shoulders/arms, recommended duration: 30 minutes; Negative pressure head: For use on the shoulders, neck, arms, and legs, recommended duration: 5-10 minutes, until the sha effect is achieved. Fat-burning head recommended duration: 30 minutes. Note: While the negative pressure head can produce sha, it is recommended to wait at least one week for the affected area to heal before using it again. There are no specific requirements for other probes, but for optimal results, it is recommended to use them 3-4 times a week. 

Yes, the radio frequency head inside can achieve this effect. 

Hello, the functions are the same. The main difference is the screen. FY13.0006US is a touch screen HD screen. 

Thank you for your suggestion, we will complete it as soon as possible. If you need it now, please contact us via email. We will provide you with detailed information.