The strangest things cross your bench once you're a dad. This 'musical activity thing' normally lives strapped to the little guy's changing table (you press the frog's eyes and the light up as it plays a song -- the baby loves it). The batteries started running down and ashacat charged me with finding out what we need for replacements. Alas it's not just a pair of AAAs or a nine volt. It's three little 'pill' type batteries ... which the local CVS does not have. On to Radio Shack I suppose.