Trick or treaters coming to your door are sure to jump when this frightening doll lights up and starts singing its eerie song...all while trying to shake free of its shackles the whole time. The Lighted Animated Halloween Hanging Dememted Baby Decor is sound activated or a by pushing a button and runs on 3 AA batteries (not included). Hang it up in your hallway or by your front door to get the most out of this creepy haunted doll.