The Strongest Cordless Air Duster With 90000rmp max speed, this Gorilla Air Duster adopts a new generation Brushless-Motor, which can easily blow dust away from anywhere and solves the problems of weak wind speed and insufficient battery power. It is perfect to be used for keyboards, cameras, PC, windows, plants, couches, pet hair, and other electronic devices. 3-Gear Adjustment Equipped with a switch, the wind power can be adjusted as required. 3-speed wind speeds (50000 RPM, 70000 RPM, 90000 RPM) are suitable for different device cleaning. Strong winds can precisely blow away 99% of the dust and greatly improve the cleaning efficiency, and the steady, pure airflow with low speed won't hurt your valuables. 7500mAh Rechargeable Battery & Fast USB Charging This air duster has a built-in 7500mAh(2500mAh x 3pcs) large-capacity lithium battery that can be used continuously for up to 30 minutes. It also comes with type-C fast charging allowing you to fully charge within 3 hours.