We have adopted an abandoned puppy who is adorable in the house, but when it comes out it becomes unmanageable. He had crossed a whole night to hunt rabbits and barking and wake our neighbors. He killed us four hens. Since then he was still allowed ... With this necklace we can walk without a leash. I gave him a discharge 2 or 3 times - now wear the collar enough and it's very rare that I use the remote control - to make it a vibration (the discharges are no longer needed). I was careful in his behavior - at first it was a bit impressed but now his tail is up and it is joyful - anyway he listens well and after having listened and obeyed it receives a reward. He wears the collar several hours a day, also in the house.