With a voice recorder, this microphone allows to realize a record with more comfort. laspect practice is here filled correctly. Regarding sound quality, compared with the microphone included in an Olympus VN 3000 Pc dating a little. we must note a more muffled on the dictaphone with this lavalier which lets you play a fuller sound in the treble but with a bump in the midrange that makes the sound a bit more aggressive than the microphone voice recorder. Here one should not expect a quality of Sennheiser MKE 40 to 10 times the price. however, with some corrections by equalizer, sound may be very correct. of course there is a condenser microphone that for a fairly low price, can record all kinds of human voices and above all the interview a bit loud in a public conference with a hundred people ... in addition to the conventional recording one person. the microphone is very sensitive even has placed 2 meters from the mouth of the speaker. I also note a greater SENSIBILITA to friction compared to ME15 internal microphone to dictaphone. the friction coat fruits near the ME 15, however, may prove to be bothersome if one is demanding in matters of quality insulation to noise.