We love this PocketFinder as it gives us a strong sense of peace of mind whenever my son is out of the house either walking to school or playing with his friends in the park.

PocketFinder GPS Pet Tracker, Compatible with iOS & Android for Locating and Monitoring PetsI have tried quite a few pet trackers, I have big dogs, Newfoundlands, and with many of them it was just impossible to fit them to there collars with what was supplied