Logitech UE 9000 Wireless Headphones

Pros:- When plugged in, sound is very impressive- Solid Build- Good ControlsThe bad:- Pairs to iphone no problem. Pairs to my Windows 7 PC no problem,. Except driver install for PC fails and no sound comes out. Logitech has no documentation on their site, no driver to manually install, totally disappointing (can't work with Windows 7?)- Bluetooth sound on iphone is good, but not worth more than a decent much cheaper headset.- Hissing noise everyone talks about - its real. I mainly hear it between tracks, not when music is playing. Although, if you are listening to some types of music, i can see where this would come through and be very annoying.- Headband. It seems to weigh down on the top of my head big time, and also wants to slide off the back of my head.Overall, this was a nice attempt but doesnt seem like they tested the design well enough. From a Bluetooth aspect, not worth the price by a longshot. Without Bluetooth, go buy the 6000 version or Dre's. Bummed, really wanted these to work out.UPDATE after about two months of use:- Logitech support helped me fix the bluetooth issues. Now it connects no problem everytime i turn it on.- As for the sound. My girlfriend got a pair of the newer version Dr Dre's (BT over the ear). They are really good, quality build, sound great, would be happy with them to tell you the truth. They are more portable as they fold up. But if you aren't really caring too much about the portability factor, like me, the Logitech's have a noticable depth and richness as compared to the Dre's. Dre's are really good an if weren't comparing both side by side wouldn't notice.- Now as to quality between plugged in verses bluetooth. Truthfully, my quality on BT method is outstanding. Rich, deep, quality, no static, nothing. So perhaps it is dependent upon the BT stack that is installed on each machine. I am using a USB medialink i got from Amazon for like 18 dollars. So it is not a matter of cost.- Rechargable battery is so good. I have an extra long USB extension (again amazon brand) and charge when listening if needed, but that only happens when i have really long sessions since i do alot of research and writing. I would say i get a solid 8-10 hours out of a charge and only takes a little bit to charge it back up, while listening if needed.I would highly recommend these and worth not giving up on getting it working. I prefer them over the Dre's but that is personal taste (they were really high quality and sounded great) but prefer depth with bass at the sacrifice of portability as i am using these at my desk or put into my backpack. If i was getting on a plane, would rather have the Dre's.