Summary: Really pleased with this purchase. I've always had great experiences with Logitech products and this is no exception. My only slight negative is that the headset is somewhat smaller than I expected from the image. So the earphones do not enclose your ear but sit on them. That said they're still very comfortable and I use them for long periods while wearing glasses.
Summary: I bought this headset a few months ago and it is working very well. The microphone is good and easily muted using the button on the ear. The speakers are great for conversations and fairly good for music. So if you're looking for a headset for work purposes this is great. If you're looking for one for occasional meetings and mostly listening to music then I'd look elsewhere.
Summary: This headset is very comfortable on the ears and is made of a sturdy construction. I use it with a Mac and Rosetta Stone application running OS X 10.6 and had no problems with the setup, infact I didnt need to do anything. Once I plugged it in my computer settings were changed to use the headset for mic and sound output. Quality is really very good and is noticable when using skype, crystal clear.
Summary: I already had a slightly less fancy Logitech headset, and I wanted one like it so I didn't have to keep switching voice profiles on my SR software. Things I like: the USB connector houses all the processing electronics, other brands have bigger units. The volume control and mute is integrated with the earpiece housing. Oh, and an equaliser switch, again on the earbox, that has modes for speech (tinny), music (better), and game (best).