Penguin Water Cooling Fan Air Cooler Office Desktop Household Portable Air Conditioning Fan USB Water Cooling Fan : The fan has three levels of wind, which can be adjusted up and down. You can set the mode through the knob and adjust the wind direction through the blinds to meet your needs. The cool breeze is only for you. You can add ice water to the internal water container, and then the fan will blow a cool breeze to moisturize the air, while reducing the temperature inside the door and reducing fatigue. The cute penguin shape adds more attention to this air cooler Built-in 2000mAh rechargeable battery with USB charging port, which can be charged by computer, mobile power and car. No need to worry about running out of power. The cooling fan produces low noise during work, providing you with a quiet and comfortable rest or working environment. The water-cooled fan is small in size, easy to place on the table and bedside, and has a small space, suitable for use in bedrooms, offices and cars.specification:Water tank capacity: 300mlInput voltage/current: DC5VBattery capacity: 2000mAh/(18650 lithium battery)Use power: 2W-8WWorking current: 0.6A-1.6Ausage time:1. Turn on the fan alone for 3-8 hours,2. The spray and fan are turned on at the same time for about 1.5-4 hoursProducts include:1x air cooler1x data cable1x Chinese and English manual