Summary: great unit once you up load the maps tracks the dogs very well also great for bush walking and stalking set a way point for the car or camp on the unit and it will take you to the way point you saved you can even save more then one way point (preaching trees rub trees bedding down spots wallows gullys) you name it this handy little unit can do it all so easy to use
Summary: I use this unit to track my terrier when she is varmit hunting. In heavy brush or hill terain it will work 1-1.5 miles. On my trips to more open country in Utah and Montana, it will work up to 3-3.5 miles. I have been very pleased with the unit, but as a few others have said, the menus could be more user friendly. Battery life on the 220 unit is 10-12 hours. I have recommended this unit to other people.
Summary: This Unit worked as I expected. Takes about 2-3 minutes for each GPS receiver to acquire satellites and establish communications between collar and handset. Range is pretty good on the VHF trans/rec portion. In clear lightly treed areas, works about 3-4 miles. In wooded areas, works about 1.5 miles. You mush hold the hand unit "face up" to accurately show direction of dog(s). I would recommend this unit.