This TOSOT evaporative mobile 4-in-1 unit gives you the benefits of an portable air conditioner, a heater, a dehumidifier and a fan, including new short-range technology facilitating use of appliances in the house.Easy to move around, this compact energy efficient portable air conditioner and heating unit is ideal for home and office. With a sound level as low as 48 dB (A), its unique stylish portable air conditioner design and elegant black and white finish will fit any decor.