The field training collar is ideal for field training, and these collars are very useful for developing a comfortable range for your dog when it comes to locating scents. This way, you’ll know how far away the dog is and what kind of distance you’re looking at when it comes to finding game. The collars have anywhere from a quarter-mile to a half-mile distance, and these training systems can accommodate several dogs at once. These are ideal for hunting with working dogs in close range, and depending on the brand, both the collar and the transmitter are waterproof and submersible in water.