An electronic device is disclosed, including a housing including a first surface, a second surface facing away from the first surface, and a side surface structure at least partially surrounding a space formed between the first surface and the second surface, an acoustic hole formed in the housing and configured to emit a sound in a direction the first surface faces, a speaker disposed in the housing, and a first acoustic waveguide and a second acoustic waveguide together providing an acoustic path between the speaker and the acoustic hole, wherein the second acoustic waveguide is different from the first acoustic waveguide.