Dog training collar 600 yards with waterproof Rechargeable

This is the third bark collar I have tried on my dog and this one really works!!! I use the sound button most of the time and the vibrate only once as he really jumped!!! I haven't used the shock button as I haven't found it necessary, I don't like the idea of a shock but if I eventually need it I guess I will try it!! The rechargeable feature is great!!