Feature:1. negative ions give you freshness breath and feel the air brought by negative ions.2. The large cold wind quickly cools down, and you can add water and ice cubes to the water to cool down immediately.3. Adjustable wind speed, three‑speed wind speed to enjoy good air quietly, to meet your different needs.4. USB charging fan, when the air‑conditioning fan is out of power, you can also use the power bank to charge.5. Long battery life, including 2000mAh lithium battery, can be used for a long time.Spec:Item Type: Air CoolerMaterial: ABSWeight: Approx. 618g / 21.8ozColor: PinkProduct Size: Approx. 13x12x12.5cm / 5.1x4.7x4.9inVoltage: 5VCurrent: 1000mAPower: 4WMotor Speed: 266-3600 rpmIon Concentration: 1x10^6PCS/cm3Ozone Concentration: <0.03PPmWater Capacity: 150mlBattery: Polymer Lithium Battery 2000mAh (included)Charging Time: About 3 hoursApplicable Time: 8 hours in the first gear, 4.5 hours in the second gear, 2.5 hours in the third gearHow to Use:1. Click the fan button to turn the fan on and off. Click the fan button for the first time to start the fan (default low gear). Click the fan button twice to switch to the second fan gear, and click the gear button three times to switch the fan to the third gear; click the fan button again to turn off the fan2. Long press the fan button to start and close the negative ion workPackage List:1 x Air Cooler1 x Manual 1 x Water Bottle1 x USB Data Cable