Your Questions About Best Dog Collars For Training

Susan asks…What would be the best collar for two aggressive dogs?( way to many spelling errors in the last post) What is the best collar.? I have two pit bulls of whom are rescued fighting dogs...On many shows they say walking a dog with another will bond them, Is there any kind off collar that I can buy, for complete control over the two dogs heads? So I can to avoid any bites or attempts to attack. I know dogs like this can be trained again, besides a muzzle what collar gives

dog protection training