I don't know if I can describe this right....You know how the ear pieces form a Y, with the two tops of the Y being the ear pieces? Move the bottom part up to help hear better. So, you'll be laying down, holding one part on the tummy, and use the other hand to move the Y up to help you hear better. At least, that's how we heard it on me! Even my three year old was able to hear it, so much fun. Ah, great, now I have baby lust!! LOL