First, insert the plug on the power cord of the thermostat into the jack at the top of the handle of Bianshi musical instrument, and then turn on the thermostat. When the thermostat indicator lights up, it means that the circuit is connected. Turn the knob on the thermostat to the brightest degree and heat the chip to the hottest degree. When the temperature reaches the use temperature, turn down the thermostat knob so that the bian stone head can be used at a constant temperature. The thermostat can adjust the temperature of the bian stone head, and it can be adjusted to the best use temperature when it is used.