World's first! To keep away cats from your garden and prevent them from pooping and being naughty! Supersonic cat guard sensor // Japan Import / With our shop original product description size/4.7x3.9x5.4inchs (dry battery type)The battery life is about 4 months. It places only, it reduces the turd urine damage of the cat with the supersonic and there is not a problem in the establishment the rainy day, too, in the waterproof structure According to catching the move of the cat with the infrared sensor and the movement It is designing not to injure a cat from the viewpoint of the animal protection, and to hang 2 weeks of 1 and to let it learn them and to prevent the damage ( the trick ) of the shit and the urine and so on. It reacts until 13feet / a maximum of 20 going-straight on feet at 90  of each of the sensing ranges / either side.