The ABC mode only represents the different ways of lighting the red light and default is A. Also,the red light is LED, assisting skin rejuvenation 

Hello, It is recommended to use the fat-blasting 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 

Hello, As long as it is a skin care gel, the brand is not limited. You can also choose essential oils, creams and lotions that are rich in moisture. Thank you 

The 40k and 80k for cavitators refer primarily to the ultrasonic frequencies, which are 40 kilohertz (kHz) and 80 kilohertz (kHz)。 Frequencies around 30kHz to 40kHz tend to produce more audible sounds, which can be noticeable, especially for those sensitive to noise or with tinnitus. This is because lower frequencies fall within the human hearing range, causing a buzzing or ringing sound.In contrast, higher frequencies like 80kHz move outside the typical hearing range, reducing the likelihood of aggravating tinnitus. While 80kHz devices may produce a higher frequency sound, they are generally less audible. For those new to cavitation, both 40kHz and 80kHz devices can seem similar in use. However, if you're sensitive to sound, starting with an 80kHz device might be preferable. It's also worth noting that 40kHz machines are often more affordable. If you're undecided, we recommend starting with a 40kHz device, as it offers a balance between cost and effectiveness. 

Hello, Sorry to hear this. This is not an electric shock. The 4-pole head is a radio frequency head,If the energy is turned up very high and it is suddenly placed on the skin, it will feel like a touch of pain because it generates focused heat. To operate the RF head, you can first adjust the energy by 1-2 levels, then apply the product, touch the skin and move it slowly. If you open it up all at once and put it on your body, few people can bear it. 

Hello, The frequency sound is determined by the frequency shock wave of the head and the 40K and 80K probes are high frequency, so the body of the person being touched will have the frequency sound. Also,The frequency sound is less perceptible in places with more flesh, and the closer to the bones, the more obvious the perception. If you are sensitive to sound, you can adjust the energy of the fat-blasting head to a lower level or reduce the operation time, use the radio frequency head and negative pressure head more often, and slowly adapt. 

Hello, The 40k fat-blasting head will gradually feel warm as the frequency increases, but it won't be particularly hot. As long as you feel the frequency sound, it's normal, so don't worry. 

Hello, if you purchase more than 30 USD, the shipping is free. This area is tax-free. 

Hello, the 4in1 has a vacuum function. 

Hello,The ABC mode only represents the different ways of lighting the red light and default is A. Also,the red light is LED, assisting skin rejuvenation