This is one of my other teddy bears (Blue Beary: [link]
), his name is Mr. Ba-Bump.
Ya see that knob in his chest? You turn it and it makes a sound like a heartbeat...'cept the battery's dead.
My folks got it when my bro was a baby nearly 19 years ago (he turns 19 the day after I turn 17) because of how a baby would be so used to hearing the mother's heartbeat in the wome he/she could be upset not hearing it adter birth. So the parent would turn the knob and leave the baby with the bear for nap-time to help the baby sleep.