Nickelodeon Teenage Mutant Ninja Turtles Power Sound FX Donnie Pull the power coil arms or legs to activate battle sounds Hold them back for extended effects - you control the action Look for all the Power Sound FX figures Includes 3 (AG13) Alkaline button cells Teenage Mutant Ninja Turtles and all related titles, logos and characters are trademarks of Viacom International Inc