LANYARD INCLUDED. A complimenting colour ACME 104 Swivel Hook Lanyard is included with the 211.5 Dog Training Whistle The Genuine ACME No. 211.5 Dog Whistle, made from BPA-free plastic, delivers 90 dBA at a single frequency of 5400Hz, making it perfect for longer-range training and larger breeds. Preferred by Labrador, Retriever, Collie, Greyhound and larger breeds. Offers a longer range than the 210.5, approximately 450-500 yards. This whistle is recommended for use over the fields and hills, on the beach, in your local park or at home. Available in a wide variety of colors. Choose a different color whistle for your partner, family members, dog walker, or even to match an outfit for a special occasion knowing that your dog will respond to the whistle, whoever is blowing it! Available in the following color combinations: Black 211.5 Dog Training Whistle with Black 104 Swivel Hook Lanyard Chocolate Brown 211.5 Dog Training Whistle with Black 104 Swivel Hook Lanyard Day Glow Pink 211.5 Dog Training Whistle with Day Glow Pink 104 Swivel Hook Lanyard Glow in the Dark 211.5 Dog Training Whistle with Yellow 104 Swivel Hook Lanyard Hot Pink 211.5 Dog Training Whistle with Day Glow Pink 104 Swivel Hook Lanyard Lime Green 211.5 Dog Training Whistle with Day Glow Green 104 Swivel Hook Lanyard Mink Grey 211.5 Dog Training Whistle with Black 104 Swivel Hook Lanyard Nougat Brown 211.5 Dog Training Whistle with Black 104 Swivel Hook Lanyard Turquoise 211.5 Dog Training Whistle with Turquoise 104 Swivel Hook Lanyard Violet Purple 211.5 Dog Training Whistle with Purple 104 Swivel Hook Lanyard Yellow 211.5 Dog Training Whistle with Yellow 104 Swivel Hook Lanyard Made from BPA-free plastic to food-grade standards Dog training whistle: establish a consistent whistle pattern or cue that the dog recognizes and associates with coming to you. Start with a simple, distinct whistle sound and use positive reinforcement, such as treats or praise, when the dog responds correctly. Try one sharp toot for "sit" and a series of three short toots in rapid succession for "come" The all-new design is effortless to blow and give you great flexibility to vary your breath, your whistling style and your choice of commands. Do not overblow or panic blow. Ensure whistle is clean and dry before storage. Clean with warm water. Store out of direct sunlight.