An electronic device is provided. The electronic device includes a housing; an input button inserted into a button hole formed at the housing and disposed to allow a state change, a dome switch having a dome part and disposed to be spaced apart from the input button, a flexible member interposed between the input button and the dome switch and disposed to be pressed in a direction of the dome part by a state change of the input button, and a rigid member interposed between the dome part and the flexible member to deliver the state change of the input button delivered through the flexible member to the dome part.