Headset for transcribing through PC sound card. This headset?s long cord plugs into your computer?s sound card making it ideal for PC transcription. Supplied with two spare sets of foam earpiece covers. Headband type with in-the-ear speakers . Cord length: 10.4? Feet Plug: 3.5 mm (Stereo) Frequency Response: 300 to 8,000 Hz This headset is for use with the Olympus AS4000 & AS5000.