An electronic device includes a speaker module which includes a speaker unit and a first speaker housing that is coupled to the speaker unit in a first direction. The first speaker housing accommodates the speaker unit, and is arranged in the inner space of the electronic device. A soundproof device allows the inner space of the electronic device to communicate with the outside, and an acoustic passage connects the soundproof device and a portion from which a sound is radiated by the speaker unit of the speaker module. The speaker module can further include an airtight member for sealing a gap between the speaker module and the acoustic passage so that the sound radiated from the speaker unit is transmitted to the acoustic passage.