We have recently moved house to a completely new area. Both our cats had lived at our previous home for over 10 years and loved their out door life. I chose Pet Tracer mostly because of the size of the collar. Collars are not a bother to my cats at all they hardly notice them Set up of Pet Tracer - you need a laptop and Wi-Fi and be prepared to download some USB drivers for the first base set up Once you are all set up this solution works like a dream. It’s given me such piece of mind letting them loose in their new neighbourhood, I made an excellent choice :)