Professional Dog TrainingThis professional dog training flute makes it easy to train your dog/puppy with unlimited commands such as stop barking, sit, lay down, remember, potty training, hunting training and more. No need to harm your pet by using electric shocks or other ineffective training methods.Adjustable FrequencyEasy to operate, just loosen the sound adjustment screw and turn the adjustment lever to get the desired ultrasonic frequency. This is a dog whistle that quickly stops barking and helps you teach your dog obedience and learn basic skills.Safety Dog WhistleThis dog whistle is made of safe and durable stainless steel. The ultrasonic waves from the dog whistle will not damage your dog's hearing during training and will not cause any health problems for your dog. This recall ultrasonic dog whistle is suitable for training all breeds of dogs.Loss-proof DesignDouble loss-proof function with special locking nut and cover with free lanyard. You can take the Silent Dog Whistle anywhere without worrying about losing it. It's a dog whistle tracker that prevents your dog from getting lostEnjoy Training TimeYour pet can hear the dog whistle from 25 meters away even if he can't see youComplete freedom of training for poodles, sheep, rottweilers, huskies and other breeds. The dog whistle ensures they obey basic skills such as sit, paw, lay down and get up.