The plush toy is made of super soft, safe and skin-friendly fabrics. The heartbeat toy provides the best companionship and comfort to the dog during the night, and effectively reduces the anxiety and fear of the dog.We alleviate the dog's various anxieties by simulating the scene of companionship by simulating a heartbeat. Puppy behavioral training aid toy reduces negative behaviors resulting from anxiety or loneliness through natural instinct.Powered by 3 AAA batteries(not included), press and hold the key for 5 seconds to switch the machine, and can be easily replaced as needed. it can be machine washable with the heart removed.The toy recreates that intimacy with physical warmth and a 'real-feel' pulsing heartbeat, providing an extra source of comfort for your pet.The soft puppy toy helps to reduce anxiety for your pets. Perfect for new puppy owners and help to ease your puppies come into a new home. Specification: Material: Plush Size Chart: Size: 37x13cm/14.57x5.12inch Package Includes: 1 Piece Puppy Heartbeat Toy Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!