550W Efficient Blower Our high speed inflatable blower is equipped with 550W/0.74Hp motor, providing powerful impetus and greatly air flowing, you can fill the inflatable that you need quickly without effort. Input Voltage: 110V-120V AC/60Hz High Security Design The bounce house blower is powerful in dissipating heat, so it won't overheat after long hours of work. Electric air blower has a transparent cover on the switch, ensuring safe operation even in damp conditions. Besides, there are two plastic meshes covering 2 vents to help your hands avoid getting cut. Double Sided Fan Blade & Quiet Incorporating double-sided fan blade, air blower pump will greatly increase the wind speed and enhance the efficiency of inflation. By combining this impeller design with the advanced built-in bearing, reduce noise greatly during operation, offering you a dual benefit.