This heartbeat toy is amazing for anxious puppies and dogs! It simulates a real heartbeat sound that comforts pets who feel lonely or scared. Perfect for new puppies missing their mom, during thunderstorms, fireworks, or when left alone. The plush material is super soft, non-toxic, and skin-friendly. Just insert the heartbeat simulator (requires 3 AAA batteries not included) and turn it on - the heartbeat will run for about 3 weeks continuously. The plush part is machine washable (remove the heart first). It works by tapping into dogs' natural instincts as pack animals - the heartbeat and warmth recreate the comfort of being with their mother or pack. This is a drug-free way to reduce anxiety-related behaviors like whining, chewing, or barking. Great for helping puppies adjust to new homes, during travel, vet visits, or any stressful situation. The quality is excellent and it's much more affordable than other calming solutions. So many pet owners swear by these heartbeat toys - they really make a difference for nervous pets. Your furry friend will have a comforting companion day and night!