Mini Portable Air Cooler Desktop Office Air Conditioning Fan USB Charging Feature: The breeze is cool, repel the sweltering summer heat Maximum fan: 5m/s Inject ordinary water: lower the temperature by 3~5C Inject cold water: lower the temperature by 5~7C Free wind direction selection The angle can be adjusted freely to meet different positions and enjoy the breeze 120 degree wind direction flip Whether it's a desk top or bringing it around at any time, she won't take up too much space There is no need to find a power source while walking, it is more convenient to use, built-in high-capacity 18650 battery cell Large diameter water can be added, ice water can be added, soft wind is cooler, 150ml capacity water tank design Ultra-quiet, strong wind, balanced output, strong wind, high wind meets daily life and more occasions for work. Low: soft and comfortable, refreshing experience, 3m/s Med: Double refreshing, sweep away the sultry heat, 4m/s High: strong wind speed, cool instantly, 5m/s Higher: strong wind speed, cool instantly, 6m/s Input: 5V=1A Size: 36x15x15m Package: 1 water cooling fan