Wall Fan: A quiet fan system designed to be mounted onto wall or floor registers to boost airflow. By increasing warm and cool air coming from weak registers， you can increase room comfort and reduce energy costs.

PWM Control Fans: The system utilizes high-performance DC-motors that are control using PWM (Pulse Width Modulation). This technology enables the dual 92mm fans to be able to run smoothly at extremely low RPM speeds without generating motor or electromagnetic noises. The noise the fan makes as low as 38dB.

Intelligent Programming: The controller on each unit features active thermal monitoring that can trigger fans to run for both cooling and heating temperatures you have set， as well as automatically adjust fan speeds to respond to varying temperatures. The controller can also be set to run continuously at speeds manually.

Versatility: The fans feature a blade design with high static pressure rating， specialized for delivering airflow even in applications where air movement is being restricted such as ductwork. The motor houses allow the fan system to be mounted horizontally or vertically.

Specifications: Dimensions: 11.54"Wx1.96"Dx5.51"H; Hole to hole distance: 10.55"; Total air flow: 120CFM; Rated power: 6W; AC input: 100 to 240 VAC; Color: black.