An electronic device is disclosed herein. The device includes a housing including a first opening formed in a surface thereof, a camera at least partially disposed in the housing, such that a lens of the camera is aligned with the first opening, a camera bracket including a flange structure disposed in the housing and spaced apart from the surface of the housing at a predetermined interval, a protruding structure extending from the flange structure into a space defined between the camera and an inner wall of the first opening to surround at least part of the camera, wherein the flange structure includes a first through-hole, and the protruding structure includes a recess, and wherein the protruding structure and the inner wall of the first opening form a microphone hole in communication with the recess and part of the first opening, an adhesive member disposed between the flange structure and an inner surface of the housing, the adhesive member including a passage, wherein one side of the passage is connected to the recess, and an opposite side of the passage is connected to the first through-hole, and a microphone element disposed in the housing and aligned with the first through-hole.