It is also lighter and less noticeable than other satellite dog trackers that have those large antennas on the collar and a large handheld receiver to track with instead of being able to use my smart phone and the TRAX app to track with.

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.