MICROPHONE DEVICE

摘要

A microphone unit (1) has a first diaphragm. A supporting body (6) supports the microphone unit (1). A second diaphragm (5) is fixed to the supporting body (6) by being separated from the first diaphragm at a prescribed interval. An exterior body (2) covers the microphone unit (1), the supporting body (6) and the second diaphragm (5). A space surrounded by the supporting body (6), the first diaphragm and the second diaphragm (5) is a hermetically sealed space (S1) wherein a gas is sealed.