Used with temperature controller. According to the instruction manual of Bian Shi mattress, electromagnetic wave is used in conjunction with thermostat in the supporting equipment of Bian Shi mattress. After turning on the power supply, turn on the thermostat and adjust the electromagnetic wave button to the appropriate temperature. Bian Shi mattress is one of the health care methods used by many families now. Bian Shi mattress is based on traditional Chinese medicine theory and modern science and technology, and Bian Shi mattress is developed and designed with pure silk Bian Shi as the main functional material.