Using the VisioVet App you can communicate with the thermometer Visiofocus Vet and you can also easily change the setting of each button. For example, you can set the three buttons with the more commons animals you need to take the temperature to. For example, the button 1 for big dogs, the button 2 for cats, the button 3 for small dogs. But if necessary, with the smartphone you can easily change any of the button with the adjustment necessary for horses or cows or elephants and so on.