Features: 1.[KAZOO PLAYING] The sound produced by human humming is amplified by the sound of its own diaphragm and resonance tube. 2.[COGGING DESIGN] The cogging design of the mouthpiece allows the teeth to bite when playing, and the saliva is not easy to flow in. 3.[ADJUSTABLE TONES] Rotate the gear to adjust the tightness, change the vibration range of the flute diaphragm, and adjust different tones depending on the blowing breath. 4.[EXCELLENT MATERIAL] Made of excellent metal and resin materials, hard and wear resistant, and not easy to deform. 5.[FLUTE DIAPHRAGM] Equipped with 5pcs kazoo flute diaphragms, sufficient in quantity, can be used and replaced at any time. specification:Item Type: Kazoo Material: Metal + Resin PackageList: 1 x Kazoo 1 x User Manual 1 x Lanyard 5 x Flute Diaphragms 1 x Diaphragms Storage Box