What is the switch in the lower right corner of Midea refrigerator bcd-200dkme refrigerator?

Use this switch when the food in the refrigerator is frosted. Mainly to keep the fresh-keeping storage temperature of ingredients and prevent other problems caused by frosting.

Midea Refrigerator bcd-200dkme Refrigerator has the following characteristics: double-door and double-temperature refrigeration, independent storage without odor, large capacity of 200L, specially tailored for China families. The six-grade temperature is adjusted according to the food, and the fresh-keeping temperature is accurately controlled according to the characteristics of the food, so as to meet the fresh-keeping needs of the pattern food, and the fresh taste is as always. 5KG/ 12H freezing force, D+ patented quick freezing, 100H power-off protection, energy-saving and low-noise operation, etc.