Features: F9 Smooth, Rounded Housing Eliminates air voids for a smooth, quiet, powerful flow. Proven design won’t rust or dent. Advanced Fan Technology Features a single shot 16-blade closed face fan; twice as many blades as others on the market. Patented Aim N Shoot™ Directs the airflow where you need it most with fingertip control and is lockable for single positions. Standard Forward Discharge Soft rubber design is a snap to install and is perfect for cleaning along walls and fences. Quiet Operation Compared to backpacks and steel blowers, the quiet operation is a welcome relief among users and in neighborhoods.