This GPS collar from Invisible Fence is an excellent tool for any pet owner. It is a wireless model that allows you to keep track of your pet's location without the need for any physical boundaries. The collar is designed for dogs and is a great training tool in addition to being a safety device. The collar is designed to work with the Invisible Fence system and is perfect for owners who want to ensure their pets stay within a designated area. It is an excellent tool for training and obedience, and the GPS feature allows you to keep track of your pet's location at all times. With this collar, you can rest assured that your pet is safe and secure, no matter where they are.