Like i said, my tritronics is a pretty antiquated model by todays standards. It has several differant high pitched beeping patterns (locator) so to distinguise between multiple dogs if using the same type collar on each.
It has several point modes too, one being a hawk scream, that the premise being, it is supposed work with the birds natural holding instincts when a bird of prey is known to be around...I don't know how well it works tho,..hunting pressure seems to be the biggest factor in how well the birds hold or not around here...