Microphone unit

摘要

A microphone unit is provided with an electroacoustic conversion portion that includes a diaphragm vibrated by sound pressure and that converts the sound pressure into electrical signals and a board on which the electroacoustic conversion portion is mounted. In the board, there are provided a board opening portion that is formed to face the diaphragm and locating walls that come in contact with the electroacoustic conversion portion to locate the electroacoustic conversion portion.