Product Information Brand: Booster Boluojun Battery: 1100mAh Maximum speed: 100,000 rpm Gear:4 Weight:280g Rated input:5V-2A Battery life 1st gear: 80min 2nd gear: 40min 3rd gear: 20min Turbo mode: 8min Long press the multi-function button to power on/off. When the machine is powered on, click the multi-function button to switch gears, 1st gear - 2nd gear - 3rd gear - turbocharged gear, in sequence. Product Description 【Super Power】 Combination of a three-phase brushless motor and 1100mAh battery improves the wind speed, power, and endurance. Maximum wind speed can reach 35m/s, reaching up to 110000 RPM. 【Technology Introduce】 Turbine structure with a powerful motor,quickly compress and cool down the hot air that is sucked in, turning it into the cold air and then blows out. Quickly cool you down in hot weather. 【Body Design】 Made with advanced oxidation technology, giving it a metal-like texture. Its smooth cylindrical design provides a comfortable feeling. 【Scroll Switch】 Adopt a scroll switch design, can customize speeds from 1 to 4, meeting your various needs. 【Use Guide】Air cushion blowing and inhaling, computer equipment cleaning, dust blowing, car cleaning, pet drying and many other uses. Attention: 1.Due to manual measurement and light, there may be an error of 1-3cm and color difference. Hope for your understanding.