Patent ID: 8861764

Claim:
A microphone unit comprising: a mounting portion in which a first diaphragm, a second diaphragm and an electrical circuit portion are mounted on a same mounting surface; and a lid portion which covers the first diaphragm, the second diaphragm and the electrical circuit portion, wherein the first diaphragm and the second diaphragm are arranged substantially parallel to the mounting surface, in a back surface of the mounting surface of the mounting portion, a first sound hole and a second sound hole are provided, and an enclosure formed with the mounting portion and the lid portion includes: a first sound path that transmits sound waves input through the first sound hole to one surface of the first diaphragm and also transmits the sound waves to one surface of the second diaphragm; a second sound path that transmits sound waves input through the second sound hole to the other surface of the second diaphragm; and an airtight space facing the other surface of the first diaphragm.