Let me start with that. no He will never stop singing lol. One day you come home from work late at night, jump in the shower and the tiniest drop of water drowns out the roaring baby shark. Scare you to death. He needs an on and off switch to sing so he can still swim. The loop has no end. My daughter lets this thing sing over and over for 30 minutes. He has been with us for 2 months and no longer works. There should now be water in the battery compartment. Doesn't move his tail, but very subdued, you can hear him singing