I received it two weeks ago, but I didn't try it out until it is sunny and clear. This product was very easy for me to train our dog. Our families live on a farm, and we set our dog at a 100-yard radius from our house. We would put the collar on our dog during the day and then chain the dog and charge the collar at night. The wireless dog fence has been working great since then. With this item, we can set our dog-free when the sunny day. and will always know if our dog stays within our boundary by listening to the beeping sounds!