From Prince Lionheart, this Rock-A-Bye Bear contains the original natural audio pacifier they made famous, with an actual recording made inside a mother's womb. The comforting womb sounds will lull baby to sleep in minutes! Sound and motion sensors on this soft, snuggly bear will activate when baby cries or jostles bear. Additional hook and loop strap allows you to secure the removable audio box to crib rails, strollers, and more. Automatically deactivates after five minutes to conserve batteries. Requires four AAA batteries, included. Measures approx. 10" long.