You might want to look at the Garmin. They are more money but they have a gps unit that lets you watch the movement of other hunters with the same unit. Almost every time I go out hunting with someone else I end up wondering where they are at, at some point in time. This would be very helpful in working areas for each other. It would also help keep track of someone that might not be familiar with an area. I don't have it yet, but I'm hoping to get a set before this year's hunts start. If anyone has a Garmin, I hope you with check in and let us know how they work.