Remote Dog Training Collar

I reviewed the cow dog thread where training collars were mentioned but no one mentioned the type of training collar they used. We have two 5/8ths border collie x black mouth cur, year old puppies that love to work cows, but are quite head strong and need training. These dogs can't stand to see a cow away from the main herd. They will gang up on her and harass her until she rejoins the group. Unfortunately, these two dogs work from the front of cows and very often hinder movement of the cow in the direction I want her to go.

 

Does anyone have a recommendation for a reliable and reasonable priced training collar. I think I need a dual collar system and would like for the transmissions to reach at least 500 yards. Greater distance would be okay, and maybe a light on each collar for following the dogs at night, but not necessary.

 

Vincent

Remote Dog Training Collar