I joined thinking it would be useful for toilet training, but my child finished toilet training before showing much interest, so I'm selling it. It was stored on a shelf in a new toilet for several months. I showed it to my child by making the sounds myself, so it hasn't been used more than 10 times. We did play with it in the living room, making the sounds. Shimajiro and Mimirin still speak clearly. (Batteries still have charge) I have disinfected it with alcohol, but please purchase only if you understand that it is a home-stored, used item.