Polypropylene piezoelectric membrane speaker

The utility model provides a polypropylene piezoelectric membrane speaker, include at least one polypropylene piezoelectric membrane generator, polypropylene piezoelectric membrane generator includesfirst foaming layer, positive electrode layer, polypropylene piezoelectric membrane, negative electrode layer and second foaming layer, the positive electrode layer sets up in the top of polypropylenepiezoelectric membrane, and first foaming layer setting is in the top on positive electrode layer, the negative electrode layer sets up in the below of polypropylene piezoelectric membrane, and the second foaming layer sets up the below on the negative electrode layer. Its advantage lies in combining the input/output characteristic of polypropylene piezoelectric membrane, uses level pressure power amplifier drive polypropylene piezoelectric membrane to raise one's voice, simple structure, the user can paste painting and calligraphy or photographic work at polypropylene piezoelectric membranespeaker according to the de