Keep cool this summer and beyond - opt for this HOMCOM air con unit. Four wheels on the base mean it's easy to move from room to room - where you want to keep cool is totally up to you. It comes with four functions: cooling, dehumidifying, ventilating and sleeping function, so it can be used at different times of day and in different humidifies. For use at night, we recommended making use of the 24-hour timer to prevent wasting energy. Drainage pipe included in the package.