Pet Training SetOur Dog Reminder Whistle is Well Designed, Small in Size and Made of High Quality Plastic and Metal for Durability and Rust Resistance. The package includes everything you need for a complete and rewarding training experience, with 2 recall whistle, 1 dog training clicker, 2 convenient nylon carry cord. Frequency Whistle adjustablethe dog whistle won't hurt your dog's hearing, adjustable to multiple frequencies, great for teaching your dog obedience and learning basic skills such as sit, come, stop barking, stay up and over, so you don't have to shout loudly. Dog Training ClickerThe Dog Clicker gives an easy and loud click with its Big Button. It uses a constant click to mark the desired behavior, then follows that click with a reward. Dogs understand precisely which action won the click and their reward, they learn new behaviors with enthusiasm. The clicker is designed with a wrist strap for Greater Portability. Easy to carry The dog clicker has an elastic spiral phone line and the other end is a key ring to prevent losing, and the lanyard can also prevent loss of whistle. The dog training whistle and lanyard are convenient to free your hands and interact with the dog during training. A good friend of mankindWith the excellent support of dog trainers and dog trainers. sciences, our clickers and whistles provide positive reinforcement for easy and positive training, your dog will receive clear signals and commands. Clear communication between you and your dog will be much easier. We will strengthen the relationship between you and your four-legged friends.