Unlike with a harmonica, inhaling or exhaling does not make any difference to the sound produced, and the player does not need to stop to take breaths as with another wind instruments, allowing a long period of uninterrupted play of the same sound (the volume of the sound is briefly lowered when the player switches his or her breath from inhaling to exhaling and vice versa).
ハーモニカと異なり、吸っても吹いても同じ音が出せるので、他の管楽器のような息継ぎが不要であり、同じ音をずっと鳴らし続けることも出来る（呼吸を替える時に瞬間的に音量が低下するのみ）。