1. The four-in-one upgraded version functions as a fan, an air conditioner, a humidifier, and can also be used as a night light. 2. It can not only lower the temperature but also help us protect ourselves from dry air and reduce allergies. 3. It is an ideal small household appliance for summer. (Note: The air cooler cannot cool the entire room as fast as a high-end air conditioner, but it is cooler and more humid than an ordinary fan.) 4. Three-speed timer setting: This portable air conditioner has 2 timers (2/4 hours) and 3 wind speeds (low/medium/high). 5. You can choose the best time and wind intensity to avoid freezing at night. 6. The upgraded mini air conditioner effectively reduces noise, has strong wind power, fast cooling speed, but low energy consumption, being energy - saving and environmentally friendly. 7. 500ml large-capacity water tank: The built-in large-capacity water tank can hold up to 500ml of water and can run continuously for 5 - 7 hours. 8. It is convenient to fill with water and is most suitable for making ice cubes. 9. The water tank is detachable and can be easily removed and cleaned after use to prevent mildew and bacteria. 10. 7-color LED mood lighting: This air cooler has built-in LED colored bulbs with 7 colors that can cycle or be fixed to create a romantic atmosphere. 11. It is a perfect night light. 12. It is very suitable for bedrooms, children's rooms, offices, reading corners, dormitories, homes, studios, basements, etc. It is an excellent gift for family and friends in summer.