Having lost 2 cats last year we were anxious about letting our new kitten out. Having PetTracer gives peace of mind. The collar doesn't trouble our kitten at all. We have been able to follow her when she escapes the confines of our garden. We have yet to use the radio signal/mobile station but it is an extra means of tracking our pet if she goes into a building. The light is also a great idea (it is really bright) and would make it easy to spot in the dark. Hopefully, we will never need it but the PetTracer (and its features) would give us the best means of finding our family pet if she gets lost.