I'm using a Telex H-831, and I'm relatively happy with it, but I find that after a couple of hours the constant pressure on the side of my head gives me a headache. I've used a number of other microphones, and they all basically have the same problem: They have to squeeze your head in order to stay on. On the other hand, I don't want a desk mic; I value my freedom of motion and the ability to listen to music without interfering with my voice recognition. Any recommendations for a comfortable headset mic? Thank you, -- Ian Gilman -- digital renaissance man -- www.iangilman.com -- 415-706-8447