Electronic bird repeller stops overhead bird infestations and unsightly droppings safely and quietly!

The QuadBlaster is designed to act as an important aid in routing nuisance birds from overhead infestations and is ideal for barns, storage sheds, warehouses, garages and other indoor areas where roosting is a problem. Four internal speakers generate overlapping UHF sound waves that create an irritating environment that makes it difficult for birds to stay, yet is silent to humans. To maximize effectiveness, the speakers can be adjusted to run at a constant 20 kHz, "warble" between 20-30 kHz or alternate between a constant and warble output in 12 second bursts. The unit can be plugged into any 110V AC outlet and conveniently mounted in any direction or on any plane with screws, nails, wires or adhesives (not included). Covers up to 6,500 square feet. USA made.