A kind of toy or rude musical instrument, as a tube inside of which is a stretched string or membrane made to vibrate by singing or humming into the tube.

a musical instrument frequently used by clowns

a toy wind instrument that has a membrane that makes a sound when you hum into the mouthpiece

a low-tech voice synthesizer for making loud and offensive noises that are then foisted off on the unsuspecting public as music

a toy musical instrument with a membrane that produces a buzzing sound and while anyone can learn to play one, even the best achievable results have little value

a toy wind instrument, usually made of plastic, metal or wood

a tube-formed, American musical instrument, with both ends of

a type of instrument known as a mirliton, which uses a resonating membrane to amplify sound

a wind instrument unlike conventional brass and woodwind instruments

A small musical instrument consisting of a tube with a top hole covered by a membrane; humming through the tube vibrates the membrane, giving a buzzing quality to the sound

Barbershop musical instrument.

The kazoo is a simple musical instrument (membranophone) that adds a "buzzing" timbral quality to a player's voice when one hums into it. The kazoo is a type of mirliton - a device which modifies the sound of a person's voice by way of a vibrating membrane. The membranophone label is a key element in the kazoo being called a musical instrument.