This compact desktop air cooler combines four functions in one device: evaporative cooling, humidification, fan circulation, and ambient lighting. Using water evaporation technology, it draws in warm air and releases cooler, humidified air to create a more comfortable personal environment. Simply fill the 200ml water tank with regular or ice water for enhanced cooling effect, and adjust the flexible air vent to direct airflow where needed. The unit offers three adjustable wind speeds to suit different preferences and conditions, operating quietly at less than 40 decibels to avoid disruption during work or sleep. The built-in rechargeable lithium batteries provide 4-6 hours of cordless operation after a full charge, making it ideal for desks, bedrooms, or outdoor use. Circulating colorful LED lights add a soothing atmosphere and can serve as a gentle night light. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65. The compact 5.35 x 7.1 x 3.5 inch design fits easily on desktops without taking up excessive space, and the USB rechargeable power system eliminates the need for batteries or constant outlet access.