This is my second whistle
This is my second whistle and I would recommend. The gps is very accurate, it gives location information in real time. My dog recently started licking his paw, which I recognized on my own, and the whistle notified me that the dog had started to lick significantly. I’m not sure I needed that but if you are away from your pet for a significant time during the day it would be beneficial information as you may not realize it has become problematic. Definitely worth the price for the piece of mind.