Bought this for my mum's dog, it was a bit slow in the beginning, however, it does the job and the app is great

The app is not user intuitive

But that is not a problem, if I am looking for my dog, at 10 to 20 feet, I can see him or hear him!The entire app is easy to use, downloaded it to my smart phone and set it all up fairly quickly.

There are a few colors to choose from (I chose pink).The app is very easy to find and download

Severely and utterly disappointed as we are in desperate need of this type of technology