Are the electronic repellers audible to humans?
Most of the electronic repellers we carry are audible, yes. This is because birds are best repelled by other bird sounds. Most units have an adjustable volume control and customizable time settings. For example, you can set the Bird Gard® Pro to operate only during daylight hours, and even at random intervals. This allows for use in residential areas. When the unit is kept on a low volume, most people can dismiss the sounds as “normal” bird sounds.
