【120mm blower fan】120+51mm pipe x 120 x 32 mm ( 6.73 x 4.72 x 1.26 in. ) | Bearings: Sleeve | Rated Voltage:5V 0.6A | Speed: 2000 RPM | Air flow: 22 CFM | Noise: 36 dBA | Power:2.5 Watt | Connector: USB | Air Pressure:0.5 In H2O【Small Centrifugal Fan】Inflatable blower, outdoor campfire events or indoor ventilation, etc. Suitable for bbq, fireplaces, fire pits, grills, smokers and camping, indoor and outdoor fireplaces and any small electronic equipment cooling ventilation【Variable Speed Blower】Suitable for different electronic equipment cooling or diy ventilation projects, the speed can be adjusted as needed to optimize the application【2Inch Electric Bellow】Equipped with a finger guard grille and air gathering vents for effective protection when the fan is running, and air gathering vents for connecting extension ducts or targeted blowing.【5V USB Air Blower】Small USB fan is powered by USB Cord and compatible with PC/laptop, power bank, car charger and other USB-enabled power supply【Service】Please feel free to talk to us if you have any problems using the product or need technical support. We will reply within 24 hours