Product Still feeling hot and uncomfortable when using a desk fan? Worried about the high cost of air conditioning? Rest assured, our 4-in-1 air conditioner fan solves all problems Product features: 1. Multi-function: with the functions of desktop fan, personal air conditioner, humidifier, and lighting, one machine has multiple uses. Investing in one product is equivalent to purchasing 4 products. 2. This cooling fan is USB powered, so it is perfect for indoor and outdoor use. It can be connected to adapters, power banks, computers, car chargers for easy use. 3. This portable cooler consumes very little energy and can save you considerable electricity bills. 4. Three adjustable wind speeds to meet your different needs. 5.300ml large-capacity water tank provides long-lasting humidification, eliminating the hassle of frequent refilling. 6. Safe and healthy, without any harmful refrigerant, just pour water into the water tank to get cool air. 7. Small size, easy to carry. Suitable for home, office, car, outdoor, camping and vacation Instructions for use: Fan Button introduction: 1. Short press the fan button to turn on fan 1; 2. Press the fan button again to turn on fan 2; 3. Press the fan button and the fan key for the third time to turn on the fan 3; 4. Press the fan button for the fourth time to turn off the fan; (steps 1, 2, 3, and 4 can be cycled in sequence) Introduction of spray button: 1. Short press the spray button to turn on the spray, and press the button to turn off the light again. Packing List: 1 HUMIDIFICATION COOLING FAN1 USB Cable 1 Instructions for Use Note: This air cooler is for personal use only. It cannot cool a large room.