This is Magic!!! I have a handy gadget for newborns and it really helped my daughter have sleepless naps and nighttime sleeps. Comfortable pillow to put on bottom of bassinet, put baby on it; automatically turns on center of pillow which has a HeartBeat button that is cushioned so baby isnt laying on hard plastic and it sounds exactly like a heartbeat, just like in the belly for baby comfort. Can be heard all over the pillow. It is soo neat! Got it for cheap but I'm sure they are expensive, definately worth the money. We love it! Heartbeat has not died out of battery.