This pack of four recordable voice buttons allows you to have a conversation with your pet. The batteries operated buttons are made of durable plastic and come with a squeaky feature that is sure to get your pet's attention. These buttons are perfect for pets of all sizes, from XXS to XL, and are sold in a unit quantity of four. The brand, Frontkpa, is known for its quality pet products and this model is no exception. They are easy to use and provide a fun and interactive experience for your pet.