The KA-333 connects from the "earphone" jack of a voice recorder to the audio-input of another recording device. Dubbing to a cassette-deck, CD recorder, home stereo system or PC is possible. If you have a WS or DM you will also be able to use it in your car via the AUX-IN connection.
Additional plug adapter to convert 3.5 to 2.5 and vice versa are included.