🐶【Your dog is disobedient?】 🐶Lets get a ShengHuoWuYu professional dog whistle. With this dog whistle that stops barking, you no longer need to yell at your dog. Choose ShengHuoWuYu brand dog whistle to protect your throat and lungs. How to adjust the frequency? 1. Remove the anti-loss cap 2. Adjust the frequency by turning the screw inward or outward, watching your dog as you blow the whistle until your dog responds positively. 3. When the proper frequency is reached, lock the nut 4. Insert the whistle back into the dust cover and you are ready to start training your dog with ease 🐶Each pet has a different perception frequency. If your dog does not respond, then you can try adjusting the audio and try several times to find the frequency that belongs to your dog. How to train your dog? : ① We need to take the dog to a quiet place where you and your dog can relax, this can make the training go more smoothly. ② Use a different flute method each time to specify commands such as "dont move", "sit" and "come". ③ For example: "Dont move" -------- two short sounds, "Sit" -------- one long and one short, "End" -------- two long sounds. ④ By adjusting the different ultrasonic frequencies, you can easily teach your dog unrestricted commands. ⑤ Please keep your whistle commands consistent, reward your dog with treats when he does it right, and make your dog a listening and obedient friend. 🐶Can be used for your dogs daily training, eating, running away and barking back, playing Frisbee with him, playing dead, crawling, sitting, standing or horseplay training, he will be a good helper for you. 🐶Please give your pet a little more patience, all training is a cumulative process, one or two times will not be successful. Package includes: 2 x dog whistle(black+blue) 2 x lanyard(black) 【Worry-free shopping】Were so confident youll love our products that we offer a 30-day money-back guarantee in case