An electronic device is disclosed. According to an embodiment of the disclosure, the electronic device comprises a housing including a plate defining a first face of the electronic device and a side portion extending along an edge of the plate and defining a side face of the electronic device, a speaker including a sound outlet disposed in a support portion of the housing extending from the side member to an inner space of the electronic device, the sound outlet disposed in a direction facing the first face, a sheet disposed between the plate and the speaker, and an acoustic duct defined in part by the sheet and the support portion, spaced apart from the plate, and extending from the sound outlet of the speaker to the side face.