Cats are the most popular pets and are welcome to be seen in the garden and living room. Nevertheless, there are places where the use of cat protection is necessary, especially when it concerns foreign animals, which are to be kept away from their own environment. With this cat protection device you can distribute cats environmentally friendly and without violence.The 55 kHz ultrasound, which cannot be heard by humans and dogs, helps to make your garden or terrace unattractive for the unwanted cats. Sounds in this frequency range are perceived as very disturbing and thus a defense effect is created. As a result, the animals will avoid the noisy place and prefer to visit other environments. This cat protection is specially designed for dog owners, because a sound of 55 kHz is not audible to dogs. This cat repellent only repels cats and does not even make itself felt for dogs.An infrared motion detector registers whether a cat is nearby and the ultrasonic sound is activated. The emi