Dog Whistle, Dog Reminder Whistle, Ultrasonic Dog Whistle, Dog Whistle, Dog Accessory, Anti-Dog Whistle, Adjustable Ultrasonic Whistle with Lanyard, 4【High Quality】The dog whistle is made entirely of brass with a chrome coating and can be easily attached to a key ring or leash with the key ring. Dogs can understand us, but they can't understand each other. express. You can easily train your dog with this whistle. 【Best Dog Training Whistle】 This dog whistle is a great training aid for any dog of any age. It can ensure that your dog can hear clear signals and commands everywhere, and you can keep him focused during training! Ask your dog to stop barking according to your instructions, sit, come, lie down and go to potty training. 【Adjustable frequency】 The precise cutting of the dog whistle achieves a finer frequency range, almost inaudible to humans, but very important to dogs. With the best and most reliable professional dog whistle on the market, it can be an ideal companion in almost any situation. 【Anti-lost Design】Our package came with 2 whistles and 2 good quality lanyards. It can be hung around the neck and will not disappear due to its small size. 【A good friend of humanity】 With this dog whistle, 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.