K9-800 K9 Handler 1.5 km Trainer on Bungee CollarK9 800 K9 Handler tactical e collar with rx 120 also known as "The Boss" comes with a bungee collar and thick hair contact points. Thick hair contact points are generally for German Shepherd dogs, working dogs like the Doberman and Huntaway. You may substitute the provided contact points for more suitable contact points if your dog has a thick coat of hair. These working dog trainers and other remote trainers are 100% satisfaction guaranteed. The