An electronic device includes: a case having an aperture; a board located within the case; a microphone located at a position corresponding to the aperture of the case; a partition wall located between the board and the case to surround a periphery of the microphone; and a sound absorbing material having a density of 46 kg/m3 to 69 kg/m3, and located in a space partitioned by the board, the partition wall, and the case to cover the microphone.