This obedience training whistle is an tool for gaining your pet’s cooperation through positive reinforcements.By producing an , interesting sound you gain your ’s attention and get him to do , rather than attempting to break a bad habit through harsh means.Using a whistle is the safe, humane alternative to , and can be used to distract or aggressive strays. Features - Color: .1. - Material: Copper and pc. - whistle with strap and clicker. - You can adjust the frequency rod of your whistle to find the pitch that your best responds to. - This obedience training whistle is an tool for gaining your pet’s cooperation through positive reinforcements. - By producing an , interesting sound you gain your ’s attention and get him to do , rather than attempting to break a bad habit through harsh means. - With our obedience training whistle you will deliver consistent , in a high frequency range that is inaudible to human ears. Your neighbors will be most appreciative! - Using a whistle is the safe, humane alternative to , and can be used to distract or aggressive strays. Package list: 1 x Whistle