Whistle 3 is the only proactive layer of protection for loss prevention in pets. It uses breakthrough GPS and cellular technology to enable you to see where your pet is at any time and will alert you if your pet leaves any designated safe place setup, such as your home. Traditional microchipping and RFID tags are an important part of pet safety, yet a reactive technology when it comes to losing your dog. To find a lost dog using a microchip, a dog has to be found and taken to a vet or shelter with access to the right database with the owner’s correct information. This process could take hours or days, but with Whistle 3 you have the ability to locate your pet in minutes. Whistle 3 is an on-collar device that can easily be attached to your pet's existing collar, whereas a microchip is embedded under your pet's skin.