Features: Experience powerful air with our BBQ blower featuring USB adjustable speed controller and high speed centrifugal. Engineered with extended iron duct, this low noise blower ensures efficient air circulations while maintaining plastic construction suitable for extension pipes. Ideal for outdoor enthusiasts, barbecue, and craftsmen seeking reliable adjustable air for camping or kitchen ventilation needs. Perfectly adapts to indoor/outdoor environments for BBQ smoker optimization, or cooling small electronics with focused flowing. combines durability with wind control, enhancing grilling efficiency and workshop safety through its iron enhances duct system. Specifications: Composition: plastic USB input: 5V2A Size: Approx.21x9.5x3.3cm/8.27x3.74x1.38inch Duct diameter: about 2.8cm/1.10inch Rotational speed: 5000rpm Package Includes: 1 Set Extractor Fan note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.