I have had many bluetooth "headsets" in my day. And I have to admit I'm the most dissapointed with this one. Though it is the highest rated stereo bluetooth headsets on most sites there has to be better than this available. I'm not upset I'm more dissapointed and frustrated. I will list the positives first since it won't take me as long to list.Positives:1. The very first thing I noticed about this set is that it played 3 - 4 times louder than any of my previous bluetooth headsets. I want to stress headsets here meaning: devices capable of outputting stereo sound via bluetooth via two earpieces.Now that that is done let's go into the negatives.1. As a bluetooth "music" enabled headset this thing is THE ONLY headset I've owned (out of 4) that didn't have some type of controlls on the device. Simple fast forward or MORE IMPORTANTLY in my oppinion rewind weren't available to my music device. Regardless of what the instructions say, I only get volume controll from my device. Not the fast forward. Why would you only have the ability to fast forward and not rewind... even if it did work?2. The dual pair mode works... POORLY. I mean Very poorly. All the other headsets didn't really care where the bluetooth signal was comming from it would accept it once synced. This thing needs to be paired almost every time. I have the Crack.. I mean BlackBerry 8700 and 8800 and I tried to dual sync the 8010's to the both of them and it was a Nightmare. Even when paired to just the 8800 and my A2DP adapter for my Ipod was still an issue.3. The darn thing is just uncomfortable. I either find myself constantly adjusting it or feeling like it's about to fall off at any given moment. Or just plain hurting my ear after wearing it for 20 or more minutes.4. The speakers from the headset are HUGE! There is no logical way to rest these things in your ear and it set properly. You would have to have a gapping hole in the side of your head for the speaker portion of the headset to securely stay in place.5. When in music mode lows are almost unrecognizable. Lyrics and speech are very clear. Say you wanted to listen to just an instrumental or something, you will not be able to catch 1/2 of the instrumental/background music. You want bass... you need to move onto the next headset. Granted they did try to stick a equalizer adjuster within the headset but I didn't find that it really made that much of a difference in sound quality vs overall volume.6. The thing is HUGE! The main headpiece is rather large compared to other bluetooth headsets. Granted you are sacrificing size for the earpiece display. I think something got lost in translation with this idea though. B/c quite technically you have take the earpiece off to see what it's doing! What's the point of having an earpiece if you have to take it on and off. Quite technically you still have to be within certain range of the phone/bluetooth device right...? Why do I need a display on the earpiece again? That becomes very annoying very quickly. You may as well just pick up your phone or device and tell it what to do rather than going through the hassle of pulling this thing off *ouch* and putting it back on *ouch*. It's good for letting other people know what you are doing... and what phone # your talking to. Talking to the mistress while with the wife... well now she knows! Maybe you don't feel like telling someone who your on the phone with so you just move right next to them place your ear close to their eyes so they can read the display?7. This may just be picky on my part but... the display of the headpiece/Call list lists numbers. So here it is, I don't know all my friends cell phone numbers... that's why I have a phone... that can store... you know NAMES? Hell, I'm looking at the call list on the earpiece like... "Ok and whose number was this one again? Ohhhhhhh!! That's the wife!"8. Vibrating earpiece.... why? I mean... b/c the thing is attached to the side of my head... directly on my ear... yet... I need it to vibrate? Scared the bajeebas out of me the first time it happened. Should have taken the vibrating parts out and added some controlls for the music devices.I am really considering shipping this thing back. When you turn the device on it says on the display "Release Your Jabra". Yea... I'm thinking of realeasing it allright. Jabra is close with this one... but still a ways to go.