ATCYMI Whistle Ultrasonic Training Whistles Review

[Safe Dog Whistle to Stop Barking] - The ultrasonic dog whistle won't hurt your dogs’ hearing so you can use silent bark control whistle for dogs to stop useless barking. [High Quality] - Our dog whistle is made of high quality metal and hard plastic. Double anti-lost design of special lock nut & cover design and free lanyard allows you to prevent dirt, damage, and accidental loss. [Adjustable Frequency] - Ultrasonic dog whistle has more frequencies and a finer frequency range. Easily teach your dog unlimited commands such as stop barking, come sit, stay. More frequencies mean better results for any pooch, at all ages. [Easy Training] -This is a good tool that allows you to teach the dog to obey and learn basic skills. This ultrasonic training tool can teach your dog commands, such as recall, sit, come, stop, stop and stop barking. [Note] - This silent dog whistle emits an ultrasound, which you may NOT be able to hear, but dogs can hear it. Please note the dog whistle wouldn't make your dog understand your instructions immediately. You are supposed to train your dog to do so. When the dog is 3 to 7 months old the training effect is the best.