ive notice that people go to trails they have 15 or so collars program in box ,but only take 5or6 dogs.remove the ones u not using so u want be receive others collars.this take care of 1 problem.i use a 17in lap top to track my dogs.at outside hunts i keep screen on a 5mile scale and keep note pad where i can keep up with what direction dogs travel off to.u can get back on your own quicker.hope this helps.