can be placed where you want because it uses solar energy large sphere of influence motion detector 3 ultrasound settings and 1 flashing light the universal animal repellent will drive away dogs cats birds martens racoons rats wild boars rabbits foxes and a lot more you can place it where you like because you are not reliant on a mains supply thanks to the solar power it can work on an area up to 50 m with a working radius of 9 m 110 choose from one of the 5 setting