I don't normally write reviews but I thought I would write one for this product because of something I just discovered it is capable of and thought I would share...
I managed to pair this to both my ipod touch and my Nokia 6300 at the same time! This is an undocumented feature, but it works - connect to your ipod first and then re-pair it with your phone and away you go.
Anyway as for the product:
Comfort - Good, as long as you use the correct rubber ear canal fittings (you can tell when you are not using the correct one because all the Bass seems to be missing from your music!), nice and light around the neck and very unobtrusive.
Battery life - I get about 7 to 8 hours of listening to an audio device from this so not bad at all.
Audio Sound Quality - Not too shabby, although not as good as my Sennheiser CX300's (which have a similar ear canal fitting), the sennheisers are wired and not bluetooth so this is pretty much what you would expect.
Hands Free sound Quality - aah here is where this headset drops from a 5 star to only a 3. when I use these with my mobile phone, people complain of poor reception and echo - obviously not great.
would I buy again? Just to use as bluetooth Ear Canal Headphones - YES DEFINITLY, as a handsfree headset - possibly, as long as the echo problem could be cured.