Air Duster-Brushless Motor: Electric Air Duster adopts brushless DC motor, stable performance and long service life. The powerful motor enables the air duster to achieve higher speed and stronger wind. Air Duster upgraded one-button fast start and stop function, equipped with stepless speed regulation, convenient to use. widely. Compressed Air Duster-Stepless Knob: Comes from ATEngeus' unique knob speed control design. Unlike Air Duster with fixed wind, you don't press the button multiple to change the wind speed. You can freely adjust the wind speed by simply rotating it. Electric Air Duster will no longer be fixed at one speed, don't worry about the fixed wind power too large to damaged items. Keyboard Cleaner-Multi-Use: Upgraded multi Air Duster, accessories include 5 nozzles, 3 brushes, 1 keyboard puller and storage bag. By brushes and nozzles, air blower can perform deep cleaning, such as hard-to-reach dust such as computer cases, keyboards, windows, etc., and you