The difference between the piezoelectric ultrasonic horn and the ordinary horn is that the sound wave frequency is different, and the sound emitted by the ordinary pronunciation horn is audible to the human ear, in the frequency segment below 20KHZ; The sound of the piezoelectric ultrasonic horn is outside the hearing range of the human ear, that is, at a frequency above 20KHZ;
Use this principle: it can be used in rat repeller, bird repeller, dog training device and other products.
Ordinary horn and piezoelectric ceramic horn are only different in structure and performance.
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