Abstract: An output device which houses a portable device in an internal space and which outputs at least audio or images outputted from the housed portable device to the outside, includes: a case body including a housing portion housing the portable device; a lid body to be locked to the case body, closing the housing portion in a locked state with respect to the case body and opening the housing portion in a lock release state with respect to the case body as well as a window portion is formed; and an operation unit cover made of transparent or semitransparent rubber materials and attached to the lid body in a state of closing the window portion.