Air whistle

The invention provides an air whistle, which belongs to the technical field of sound production equipment, and comprises an air whistle seat, a sound production structure, a loudspeaker, a frequency modulation seat and an air source connecting part. When the air whistle provided by the invention is used, an air source or a compressed air source is connected to the air source connecting part, air passes through the air source connecting part and enters a first air chamber in the air whistle seat, gas interacts with the sound production structure in the first air chamber, the sound production structure deforms and makes a sound through the loudspeaker, the frequency of deformation and recovery of the sound production structure forms the sound production frequency of the air whistle, and thespace between the sound production structure and the frequency modulation seat is changed by adjusting the distance of the frequency modulation seat extending into the open cavity, therefore, the deformation of the sounding s