Personal 3-in-1 Air Cooler: A newly designed mini fan is also a desktop fan, spray humidifier with 7-color night lights. Keep away from dry air and enjoy cool, refreshing air. (without battery) Strong wind and quiet: powerful and stable brush motor with 9 fan blades and 240 ml bottle water tank; 3 speed adjustable; large mist of ultrasonic atomisation of the mouth, 30 dB low noise. Efficiency cooling fan: nano ice mist water cooling system by inhaling the hot air and cooling the air through evaporation of ice water to form a cool wind; the wind fall of the closure, adjust the top and bottom freely. Portable easy operation: the lightweight, USB plug inport design is convenient to move and carry and leak-proof (no battery, need to connect to the power supply). Fill water/ice water into the bottle filling water tank and then press the button as needed. Multifunctional air conditioning: the mini evaporative air conditioner fan does not contain ozone refrigerant. Have a nice evening in summer. Enjoy cool and fresh air in the bedroom, living room, office, kitchen. A great gift for summer: a portable air cooler fan.