3-in-1 Portable Air Cooler with 4L Water Tank 7.5H Timer, Remote WhiteKeep your cool, whenever, with this evaporative air cooler. Three functions to switch easily: ventilating, ice cooling and hum the two ice packs for extra cool air. Sw the nine settings: Low medium high fa with normal natural sleep modes to fin comfortable for you. The 4L tank provides about five hours of use, with the 30 minute intervals so it safely turns off when you need. Share Suggestion Automatic horizontal oscillating function cools up to 25m.