Check the listing for details. Dog Whistle Stop Barking Silent Sound Train With Strap. Condition: New. Listed at 4.95 USD. Description This dog obedience training whistle is an tool for gaining your pet's cooperation through positive reinforcements. By producing an odd, interesting sound you your dog's attention and get him to do something positive, rather than attempting to break a bad habit through harsh means. Dog Whistle, Stop Barking Whistle, Sound ,Dog Training Kits, Whistle with Strap. Features - Colour: Black. - Material: Stainless Steel. - Size: 7.5 x 0.8 x 0.8 cm. - You can adjust the frequency rod of your whistle to find the pitch that your dog best responds to. - This dog obedience training whistle is an tool for gaining your pet's cooperation through positive reinforcements. - By producing an odd, interesting sound you your dog's attention and get him to do something positive, rather than attempting to break a bad habit through harsh means. - With our dog obedience training whistle you will deliver consistent , in a high frequency range that is inaudible to human ears. - Using a dog whistle is the safe, humane alternative to collars, and can be used to distract or aggressive strays. Whistle with Strap.Package includes1 x Whistle