dog ultra-sound whistle

training: Shrill sounds are obtained by screwing down the screw bolt. that drives the pump, then the sound range is four hundred and fifty meters, according to the quarter the wind blows from, on the flat ground. low-pitched sounds are obtained by unscrewing the screw bolt. the training range it then hundred meters.
1) On the flat ground: Tie your dog to a leash of about five meters long. walking the dog up and down, blow your whistle three times, stop and pull the leash. make the dog come back to you four or five times and note the tone to which your dog answers best, at that moment tighten up the screw-bolt.
2) Repeat this exercice several times in short stages, then release your dog. Do not forget to reward it, as soon as he comes back the first time, without the help of the leash.
it is advised to practice this training as often as necessary. The liht whistling you can hear is perceived four times louder by your dog.