Patent ID: 8526643

Claim:
A speaker, comprising: a base, wherein the base and a porous structure are formed a cavity; a diaphragm, disposed in the cavity, and comprising a first portion and a second portion; a separating module, located in the cavity and contacting the diaphragm to separate the cavity into a first chamber and a second chamber, wherein the first chamber comprises the first portion of the diaphragm, and the second chamber comprises the second portion of the diaphragm; a first electrode set, disposed in the first chamber, located at two sides of the diaphragm, and adapted to connect a first sound source signal, such that the first portion of the diaphragm is vibrated and the first sound source signal is exported from the first chamber; and a second electrode set, disposed in the second chamber, located at two sides of the diaphragm, and adapted to connect a second sound source signal, such that the second portion of the diaphragm is vibrated and the second sound source signal is exported from the second chamber.