Kazoos are played through the human voice humming sound, relying on its own diaphragm and resonance tube for sound amplification. It creates a hoarse tone, somewhat similar to the saxophone. If you like to sing, you can play kazoo, even if you are not a good singer. You don't have to learn music theory or score. You don't even have to practice. In just one minute you can play the tone of your dreams with a kazoo.