How to turn the piezo UNIMORPH to the maximum? piezoelectric plate is not about dB, but about frequency. There are several types of 35 copper chips. If the frequency of the acoustic element is consistent with the frequency required by your product, the sound will be louder. It can be said that you can play its performance only by taking your seat according to the number! The sound of the alarm mainly depends on the matching of inductance and Piezo Benders, and is considered from the aspects of inductance, capacity and frequency In addition, the colloid cover of the horn is also the key. The copper sheet used for Piezoelectric Ceramic Chips is divided into thick sheet and thin sheet. The sound of thick film will be thicker, and the sound of thin film will be sharper! So aside from other factors, it is meaningless to say the volume of Piezo-Electric Diaphragm alone!