Dog Training Whistle with Organic Dog Trainer Treats Cheddar Easy to Teach Dog Training Whistle: Ultrasonic Whistle stop dog barking is adjustable for different whistle pitches for different tasks. Safety Locking Nut allows you to change the pitch, you can re-tighten the nut so you wont lose the frequency arm. This ensures you will maintain that level of sound that gets your dogs attention. Outer Black Sleeve fits tightly over the adjusting frequency arm to protect the whistle. By Mack and Mercie. Training Dog Treats: Cheddar Trainer and Travel Treats from Mack and Mercie are called Minibakes Organic* Biscuits for Dogs with parsley, chamomile and joint support. Fresh baked real cheese biscuits with heart-healthy turmeric and joint support, too! They are a perfect size for training your dog and for travel. This 4 oz. package will present a new taste to your dog which is a valuable training technique to use. Obedience Kit: Helps you train your dog or puppy to listen to you whether in play or to adjust their behavior. Take with you on walks, camping, hiking, dog park. Silent Tones: You will be able to hear the whistle; however, ultrasounds (ultrasonic) are frequency vibrations that are too high to be audible to people yet they can be heard by dogs. Training your dog is easy to do, as long as you are consistent, patient and have plenty of treats and praise for your dog. Black Nylon Lanyard: Handy to keep from losing the small training whistle and will keep it safely within reach around your neck as this whistle will not come apart accidentally.