Patent ID: 8488827

Claim:
A condenser microphone, comprising: a cylindrical microphone case having a condenser microphone unit therein; a microphone connector having an insulating base insertable within the cylindrical microphone case with a gap therebetween, whereby one ground pin and two signal pins are embedded in the microphone connector; and a cylindrical connector sleeve having an electrically conductive concave-convex part on the outer peripheral surface thereof, wherein the cylindrical connector sleeve fills said gap between the microphone connector and the cylindrical microphone case, the concave-convex part on the outer peripheral surface of the cylindrical connector sleeve being in contact with the inner peripheral surface of the cylindrical microphone case at a plurality of points after the cylindrical connector sleeve is fixed into the end of the cylindrical microphone case by fixing means, and thereby the cylindrical connector sleeve is electrically connected with the cylindrical microphone case generating an electromagnetic shielding effect, and wherein the microphone connector is fixed by at least one screw to the cylindrical connector sleeve.