Deeply Cleaning Dust: The air duster has a 33,000 RPM motor with an aerodynamically designed housing that produces a powerful thrust of air at almost 10 level strong gale (28m/s) for deep cleaning of computers, electronic instruments, medical devices and more electronic components Rechargeable Battery for Reusing & Easy Charging: Built-in large 6000mAh lithium batteries make the duster reusable and work nearly 30 minutes after a full charge; Its compatibility of getting charged via the USB-port makes it perfect for uninterrupted use. Fast Charging: This air duster is specially designed to get charged faster with a 2A adapter (not included). shortening the charging time to 3 hours. The usability can be highly increased.