1. RF energy level: The device generally has different gears. The higher the energy, the more obvious the warm feeling. 2. Skin contact time: Long-term use will gradually increase the skin temperature 3. Skin condition: If the skin is dry, it may feel warmer; if gel or skin care products are applied, the warm feeling may be milder. 4. Ambient temperature: The temperature of the device may be different in warm or cold environments. Generally speaking, the temperature of RF beauty devices is controlled between 38-42°C, which is a safe and effective temperature range. If you are worried about the temperature being too high or too low, you can test different energy gears and use skin care products to adjust the experience. 

3MHZ The radio frequency head can be used every day. It is OK when the skin turns 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. 

Generally 10 to 15 minutes. Each probe must be used with products, essential oils, lotions, creams and gels are all OK, and the probe should not be burned dry. The power of the instrument is 60 watts. 

Yes, all machines can be customized with your logo or other branding upon request. Other design requests are also welcomed. MOQ may apply. And, If you need a machine with functionality that is not shown on our website, please contact us and ask our customer service for a quote. 

Yes, we offer full and partial refunds depending on your situation. For more information on our refund policy, please ask us. 

Yes, we offer free express shipping to many countries including the USA and Australia with a $30 minimum. 

To protect your investment, we offer lifelong technical support and an enhanced warranty, which covers main machine & replacement parts for 1 year from the date of delivery. All our machines are under strict quality control. Technical solutions will be offered to you asap if any technical problem is reported. Free replacement parts will be offered asap if any parts problem, and the replacement parts will 100% fix the problem.