With its adorable design and realistic heartbeat simulation, our simulation heartbeat box is a great gift for any child. It can help promote healthy sleep habits and provide a sense of comfort and security that your child will cherish for years to come. Features -Color:Red -Material:Plastic -Size:7.50X6.50X1.50cm/2.95X2.55X0.59in -Power supply: 2 x AAA battery (not included) -Recreate the sound of a peaceful heartbeat to keep your kids and pets calm and relaxed a good night's sleep. -Battery operated design, which makes this heartbeat simulator durable to use for one time. -You can insert this heartbeat simulator toy into your stuffed animals to make them more lively. -Simply flip a and introduce the calming, relaxing feeling of having their mother or sibling nearby. -Love shape, let the child feel the care of love, is the best gift for the child. Package list: 1 x heartbeat box