Headsets
[Edited 2010.08.02 to add lapel and headworn singer's microphones. 2010.08.08 change "singer" to "performer and announcer"] Since The Raven now works long-distance for a large government lab (LGL) which shall remain nameless, he has had to acquire a comfortable high-quality headset for long on-line conversations. Headsets turn out to be an area where a large amount of design and research has been invested. There are numerous types of earphones and microphones, signal processors, and devices. I've only scratched the surface of the market, and I came up with the following incomplete set of options: Wired or "corded" vs. wireless. Wireless sets sometimes include Bluetooth at considerable expense. Audio processing Basic telephony set. High-quality telephone set—includes audio processor. Some versions provide wideband sound reproduction, but this doesn't work with the actual telephone network, which is still bandwidth limited to 300-3300 Hz.