HICOPE Dog Whistle 2 Pack, Dog Whistle to Stop Barking Neighbors Dog, Adjustable Ultrasonic Silent Dog Whistle – Professional Recall Dog Training Whistles with Lanyard

【Adjusable Frequencies】: Different dogs respond to different frequencies. Our dog training whistle has a nut and screw that would adjust the frequency when turned. Notice your dog’s reaction to each setting until your dog exhibits the strongest reaction 【Stop Dog Barking】: When your dog or neighbor’s dog keeps barking, gently blow the dog whistle, the ultrasonic frequency emitted by the dog whistle can easily attract the dog’s attention and stop barking 【Professional Dogs Training】: The dog whistle allows you to easily train your dog/puppy unlimited commands such as stop barking, sit, come, and lay down, recall, toilet training and more. 【Effective Dog Training】: Your pet can hear the dog whistle up to 25 meters away even if they can’t see you! Train your dog with different commands and get them to follow your instructions. (Sit, Paw, Lay Down, Up, Heal) 【Alert】: This product is exclusively intended for trained dogs. It will not work right away; you must use it multiple times until the dog responds to the whistle. It’s similar like educating a newborn to behave.