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, 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 

Hi , Frequency: 40KHZ. 

The depth of radio frequency is usually between 2 and 3 mm, mainly targeting the dermis and subcutaneous layer of the skin. As for all technical parameters, they usually include frequency, power setting, working mode, etc. For specific technical parameters, you can check the product manual. 

Ultrasound Cavitation Technology is Silent The device operates at a 40kHz frequency, which is beyond the range of human hearing. This means you may not hear any noise, but the cavitation function could still be working properly. RF Heating Sensation Varies by Individual The RF (radio frequency) function gradually warms up the skin, but some users may take longer to feel the warmth. To ensure effectiveness: Make sure your skin is clean and free from oils or skincare products that might block energy transfer. Apply a sufficient amount of gel or serum to enhance conductivity. Keep the device in full contact with your skin and move it slowly for optimal heating. Check Your Settings Ensure the device is turned on properly and set to the desired mode and intensity. Try increasing the energy level to see if you can feel warmth or a slight pulsing sensation. Troubleshooting Make sure the device is fully charged or properly connected to power. Try testing on a different area, such as your arms or thighs, to check if the device is working. If you have tried these steps and still experience no effect, please contact Freyara customer support for further assistance.  

Hello, we will deliver the corresponding plug according to your delivery address. 

1. Fuse protection A fuse is installed inside the Fuse knob, which is mainly used to protect the machine circuit. If the machine has an overload, short circuit or abnormal voltage, the fuse will automatically blow to prevent machine damage or safety accidents. 2. How to use the Fuse knob Under normal circumstances, there is no need to twist or replace it. If the machine suddenly fails to start or loses power, it may be that the fuse is blown. You can unscrew the Fuse knob, take out the fuse and check whether it is burnt out. Replacement method: Take out the damaged fuse and replace it with a new fuse of the same specification (usually the machine manual will provide the specification requirements of the fuse). 3. Maintenance of the fuse knob Avoid rotating the fuse knob at will when the power is on to avoid affecting the operation of the equipment. Check the power line regularly to ensure stable voltage and reduce the risk of fuse blowing. 

Hi, you can use it on your legs. 

RF technology in cavitation machines helps with body slimming, fat reduction, and skin tightening by using radio frequency energy to heat and break down fat cells while promoting collagen production for smoother, firmer skin.