Sound Conditioning is critical for all dogs and this cd makes it very easy. This disk contains 98 random sounds with everything from gun fire to glass breaking. The goal is to teach the dog that noise is just noise. Simply play the cd at low volume to start while your pup is in a safe comfortable place, and over time increase the volume. It's as easy as hitting the play button on the cd player on your way out the door and the dog gets trained while you're away. Pup learns that noise is just noise, nothing more, so they can focus on the task at hand, like birds! The other benefit is your pup won't be stressed out by many other sounds.