Olympus Telephone Recording Device.
This Olympus Telephone Recording Device is just plug into the "MIC" jack of recorder and put the earphone side into ear.
The TP-7 will capture both sides of the conversation for recording by voice recorder.
This Olympus Telephone Recording Device includes adapter to convert from monaural 3.5mm mini-plug to stereo 3.5mm mini-plug.
Olympus Recording Device also includes monaural 3.5mm min-plug to monaural 2.5mm mini plug adapter.
Recommended for cellular phones and landline phones.
Does not playback sound.
For DM 10/DM20 select "monaural input" in the menu for selection EXT. INPUT.