According to various embodiments, the speaker waterproof member may include a speaker waterproof support aligned with the speaker hole of the lower housing and a center of which is opened, a speaker waterproof boss protruding from a bottom surface of the speaker waterproof support in a band shape and contacting at least a portion of the bracket and a bonding member fixing the speaker waterproof support to the lower housing.

According to various embodiments, the electronic device may further include a waterproof film configured to interrupt at least a portion between the speaker hole and the speaker sound hole while outputting the audio signal.

According to various embodiments, the electronic device may further include a microphone, a bracket including a microphone sound hole through which an audio signal related to an operation of the microphone moves, a microphone hole formed on one side of the lower housing and aligned with the microphone sound hole and a microphone waterproof member configured to seal an aperture between at least part of the lower housing having the microphone hole and at least part of the bracket having the microphone sound hole.

According to various embodiments, the microphone waterproof member may include a microphone waterproof support aligned with the microphone hole of the lower housing and a center of which is opened, a microphone waterproof boss protruding from the microphone waterproof support in a band shape and contacting the bracket, a bonding member fixing the microphone waterproof support to the lower housing and a stiffener film configured to support a strength of the microphone waterproof support.