Edit: For those of you who mentioned this -- I will use a separate system to record environmental sounds using a high quality mic. The bluetooth idea is ONLY for recording the speech of many subjects without picking up background noise. And isn't that what BT headsets are designed for?
Hopefully this isn't too subjective...
I'm preparing to begin documentary film making. I want to have a mic close to the mouth of every person in a scene.
One cheap option would be to buy a bunch of old ipods (possibly install RockBox) and buy some mics to record with.
But a simpler and cheaper option would be to buy a bunch of bluetooth headsets and set a nearby laptop to record them.
Question: Are there any bluetooth headsets, new or old, that are WIDELY KNOWN to have VERY GOOD MICROPHONE QUALITY?
Obviously I'm referring to the audio quality of the entire system from mic to transmission, and I realize that the bluetooth protocol itself introduces serious lossy compression, but it IS designed with the acoustic qualities of SPEECH in mind.