Portable keyboard cleaner for computer with rechargeable 15000mAH battery1、Adjustable Wind Speed: Long press the switch for 3 seconds to turn the device on and off. Short press the switch to switch between three wind speeds for cleaning different equipment. 2、Powerful Deep Cleaning: The air duster with a maximum speed of 45000RPM and a blowing force of 1.15‑1.32OZ creates a super airflow to remove debris and dust from any electronic device. 3、Rechargeable and Reusable: There are LED lights that allow you to easily clean up dark corners, bringing great convenience to your cleaning. Both environmentally friendly and energy saving. 4、Portable Design: The air Duster is cordless and compact, you can take it anywhere for multi scene cleaning. The elongated nozzle makes it easier to clean corners or places that cannot be reached by hand. 5、Multipurpose: Suitable for dust removal of computer cases, keyboards, cars, fans, etc. The multi function nozzle is used to inflate swimming rings, air mattresses, etc.