How much does this cost to the nearest dollar?

Compressed Air Duster - CFGROW Stepless Speed Electric Air Duster for Laptop Computer Keyboard Electronic Devices Cleaning Dust, Hairs, Crumbs, Scraps, Replaces Compressed Air Cans (Black)
Powerful & Efficient About 40,000 RPM motor provides enough power. Our dust blower can blow at 40m/s and 90MPH immediately and continuously provide high-pressure air to remove dust, the wind force it produces is unimaginable. Stable, pure airflow will never harm your valuables. Stepless Speed & Flexible Air Volume Control Our upgraded electric air duster can control the air volume by rotating the switch, the wind power can be adjusted as required. The wind value is Control different air volume according to the cleaning object, which is flexible, convenient and energy-saving

Price is $30.00
Price: $29.99