Are there any safety risks with the KY1081 massager's red light and heat therapy functions? How can I avoid getting burned?

The red light is a medium to high energy LED (wavelength 650nm ± 10nm), CE certified and free of radiation risks. The heat therapy module is equipped with an NTC temperature control chip that automatically cuts off power when the temperature exceeds 65°C. It is recommended to keep a thin layer of clothing between the skin and the device for insulation when in contact with the skin.