Pros Cheap, works well
Cons breaks easily
Summary I got this for $37 with shipping, which was a lot cheaper than the stores. It works great (sometimes a delay on answering), the sound quality is good, and it fits well.
The rotating mouthpiece breaks off. To be honest, I am not careful with my stuff. But I know 4 people at work with this earpiece, and 3 of them had their mouthpiece break off. I glued it into place so it's stuck open, so it's still okay. The wishbone earpiece has also broke on me 3 times and glued back. It's cheap tho, so if you don't mind glueing it in place, it's a bargain.
Pros Excellent battery life, great charger and storage, audio quality very good.
Cons Boom and earpiece easily broken. I broke the wishbone screw mount on mine after 6 weeks giving my daughter a hug when it was in my pocket. If anyone has a broken headset with a good wishbone, please send me a note to mirage1 of ihug dot co dot newzealan
Pros Nice charging cradle/carrying case. Comfortable.
Cons Beeps (loudly) every 3 seconds when muted. I've owned 2 of these headsets and both produced loud interference on all calls. Completely unusable.
Pros Light weight and compact
Cons Noisy, picks up background noise and even enhances it.
Pros Light and compact
Cons Callers haer noise and interference when used ti Sony Ericsson T616. Logitech replaced the product without fixing it and the problem persists(not compatible).