Ultrasonic repellers

Ultrasonic repeller

— devices emitting ultrasound are sound waves inaudible to the human ear that have a detrimental effect on the nervous system of animals, birds and insects. Ultrasound causes fear, a sense of danger and disorientation in them, forcing them to leave the area of the device as quickly as possible. Depending on the implementation, such repellers can be used both indoors and in open spaces. Ultrasonic devices are used against dogs, cats, rodents, birds, crawling and flying insects.