"Very good stereo headset"4.0 starson by Tempest790
Pros: Very good audio quality and battery life
Cons: Uncomfortable ear loop. Without it, somewhat loose fit.
Summary: I've used the Plantronics 855 for several months now, and I really like it. It has much better battery life than the 655 headset I had prior to this. My 655 barely lasted day with light usage. I've gone over two to three days with light usage on my 855.
Sound quality is very good paired to my AT&T Tilt. It will pick up wind noise if facing into the wind, but does a pretty good job filtering out background noise.
Stereo audio is fantastic. On par with a corded headset. All I do is plug in the other earpiece and it's ready to go. I have listened to music over two hours and the earpiece was still going strong.
My only complaint is that they include an optional ear loop that is uncomfortable for extended use. I don't use it as they also include several sizes of ear gels that can fit in your ear. That's how I wear mine, but I must be concious that it does come loose from time to time.
I haven't tried any other stereo headsets, so I can't compare to others, but this headset is definitely worth a look.