Features: Experience powerful airflows with the 12v double balls air blower fan, equipped with a variable speed controller for versatiled cooling solution in DIYer projects and BBQ setups. This blower fan features double balls bearing, delivering a high velocitys of 4800rpm and a airflows of 40CFM, all while maintaining a noise level of 58DB, ensuring efficient performances and durability. For construction worker, outdoor enthusiasts, and DIYer hobbyists, this fan is designed to meet the cooling needs of various demanding environments. Perfect for inflatables, campfires event, indoor ventilation, or as a reliable BBQ tool, it can be powered using a 12v mobile power supply, adapter, or car, making it suitable for both indoor and outdoor use. The fan comes with a metal clip and double layer protective mesh, allowing easy attachment to belts and providing enhances safety, making it a practical choice for any small electronic equipment cooling or outdoor activity. Specifications: Component:Metal+Plastic Size:Approx.15x9.5cmx5cm/5.91x3.74x1.97inch Diameter of circular tube: Approx.3.2cm/1.25inch Color:Black Input: 12V1a5.5x2.1mm. Rotational speed: 4800RPM Air volumes: 40CFM Wind noise: 58dB Package Includes: 1pcs Air Blower Fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorings of the item. Thanks for your understandings.