as for collars, you really cant see them to good when sun is out and dog running thru brush even on BLACK DOG.
as for bell,i dont think roadhunters will hear bell inside their trucks with engine running.
I am sorry you feel that way, Day Glow collars are designed to glow in the daylight ( Even on a Black dog ) and can easily be seen......They are Day Glow think about it.. For as far as a bell they would need to be death not to hear it even with a motor running. Unless the exhaust is off it and they keep reving it up. I was trying to help you out but, I guessI can't..