In winter you need not only warmth but also proper humidity. This product is not only "warm very intimate", but also can maintain the air humidity, in the warm hands at the same time, also can let the hand and the air is not dry, keep moist, let the skin QQ play. It's warm and sweet. The upper part of this product is a humidifier, and the lower part is a heater. Both have different corresponding switch keys and adjustment keys, which are convenient, concise and easy to operate.