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. 1 x Kazoo1 x User Manual1 x Lanyard5 x Flute Diaphragms1 x Diaphragms Storage Box Item Type: KazooMaterial: Metal + Resin