I recommend 221

Although skeptical and absolutely against this kind of training method, I determined to buy this product. Indeed my dog ​​chasing bicycles, joggers and even cars endangers and may cause an accident.
And here I am blown away! In 24 hours my dog ​​9 month (collected from a shelter there is two months), immediately understood, with the beep and vibrate, the vigil also donnés.J'ai orders to change my attitude and be firm in my kindness to her, not to mention the reward as soon as it comes back to me. I think and I hope never to have to serve me electric shock. I recommend this highly effective product on my dog ​​(16 kg) and easy to use. I would add that it is not at all traumatized, but she is surprised each vibration, and no pain (I tested on me ...)