A dog training whistle can be an effective tool for teaching your dog to follow your commands, such as calling him to you, sitting or going in a new direction.Here we provide you with a dog training whistle. The whistle can produce an ultra-sonic sound that is easier for dogs to hear. It takes a little bit of time, patience and practice, but your dog will learn to obey you through various whistle commands.This unique training aid combines two of the most popular dog training tools: a clicker and a whistle with a free lanyard.Features:Simply press the clicker and command to train your dog quickly.Very nice whistle with Small Size & Light Weight and useful clicker for training your dog.Dogs Or Puppy Pets Adjustable Training Whistle.Adjustable & fantastic Ultrasonic Whistle to find the right frequency for your dog to be trained.This Whistle can help you to train your dogs to stop barking & dog obedience.Dog whistle & clicker for the dog (can also be used for other pet birds such as pigeons) to establish a good tool for communication anddiscipline.Specifications:Color: BlackWhistle Material: CopperClicker Material: ABS + Stainless SteelLanyard Material: PolyesterLength of Whistle: 7.8cm / 3.07inLength of Whistle with Keychain: 9cm / 3.54inDiameter of Whistle: 0.7cm / 0.28in Size of Pet Training Clicker: 6.5 * 3.5 * 2cm / 2.56 * 1.38 * 0.79in Size of Lanyard: 49 * 1.6cm / 19.29 * 0.63inApplicationof Whistle: Training Dog, Cat, Parrot, Eagle, Bird, Pigeon, Rabbits...Applicationof Clicker: Training Dog, Cat, Horse, Bird, Fish, Rabbits, Elephant...Whistle Weight: 16g / 0.56ozClicker Weight: 15.8g / 0.56ozPackage Size: Approx. 13 * 11 * 3cm / 5.12 * 4.33 * 1.18in Package Weight: Approx. 48.1g / 1.69ozNote:Adjust the length of the copper dog whistle by rotating the whistle to change the frequency of the whistle and choose the best frequency for your dog.Package List:1 * Dog Training Whistle1 * Pet Training Clicker1 * Lanyard1 * User Manual