The BirdXPeller® PRO gets rid of birds by emitting a variety of naturally recorded distress calls and predator cries that confuse, frighten, and disorient pest birds. The digital sounds warn birds of an emergency and to stay away. The sonic repellers are completely programmable and utilize real sounds with clear and high-definition playback. The BirdXPeller® PRO is a safe and humane solution to protect your property from bird infestation. With three versions to chose from, you can tailor your bird control to work for you. International voltage options available upon request.