Excellent!
It says the battery lasts 30 min at high speed

You have to press the power button for a long time to turn it on and sometimes it doesn't, so you may think it's a malfunction

good and powerful when it is a game changer so simple to use and very portable

Powerful Cleaning: With a 51000 RPM motor, this compressed air duster can easily blow away dust and debris from your computer keyboard, PC, car, and more.

Convenient Charging: This electric dedusting blower is USB rechargeable, making it easy to use and charge on-the-go.

Portable Design: The wireless and compact design of this air blower makes it easy to carry and use anywhere you need it.

Versatile Use: Use this air duster to clean hard-to-reach areas in your home, office, or car, making it a must-have tool for any cleaning kit.

Compressed Air Duster For Computer Keyboard PC Car Clean 51000 RPM USB Charging Portable Electric Dedusting Wireless Air Blower