Release your inner prankster with Mystery Prank In A Box from WowWee! Inside is a surprise sound prank that is activated by one of 5 sensors; light, darkness, motion, timer or touch. Each Mystery Prank package includes 1 electronic prank and bonus prank stickers for more practical joking fun. These mischievous pranks create instant memories, hilariously awkward moments, and ridiculously funny videos. Plant your mystery prank, and get ready for some priceless reactions! 12 pranks to collect.