7 months ago we lay down for a little Border Collie, the course has plenty of stamina and also needs to be educated accordingly. As demand training I bought an ultrasonic whistle from a nearby retail. The first exercises unfolded so quite well, but over longer distances my dog wanted this no longer hear you. This whistle here gave me a good impression and was to have favorable. One day after the order I kept the whistle in his hand and began with the training of the same. The result convinced me mercilessly, my dog heard this whistle even when suddenly a hare is rumgehüpft in the field and my dog is naturally afterwards. Conclusion: The training works clearly better, the whistle can be heard over long distances and without them my dog today probably lost ...
