I purchased the Jabra JX10 after doing a lot of research, both here and on many other sites. If you have not seen the headset, it is very discreet and fashionable as advertised. The headset charged in exactly 2 hours using the usb charger included. Pairing with my Samsung A900 was a snap. The unit is extremely light and very comfortable on the ear using the supplied ear clip (I wear glasses and the ear clip was never in the way or the least bit uncomfortable).The first few calls made were crystal clear, so long as I had my phone on the same side as the headset. Issue #1: I was not able to get anywhere near 30ft away from the phone (more like 3 feet) before I experienced static.The same day I purchased the JX-10, and shortly after fully charging the headset, I went to the mall to do some more shopping. During the drive to the mall, I was able to talk on the headset with the windows down without any complaint from the person on the other end of the call. As a matter of fact, I don't think they even noticed I had taken the call from home to the car, even while driving with the windows down. I guess the DSP really does work.Issue #2: Once in the mall the headset became unusable. I became frustrated and turned the Jabra off and started using my phone to complete my call. The sound would drop in and out. While in it was crystal clear, when it dropped out there wasn't any static, just no sound. Again all the while, even with the issues I was experiencing on my end of the call, I don't think the caller knew I was on a headset during the sound issues.I returned the Jabra the same evening after the visit to the mall. I couldn't justify the price for the poor performance. With that said...many people seem to be having good luck with the JX-10. My advise, if you purchase any headset, put it through the paces as soon as you can in order to find out if it is right for you or not.I plan to try the Discovery 645.***Update 7/30/06***When I did this review of the JX-10 awhile back I rated it 3 stars because it was plagued with static (on my end). I extremely disappointed the JX-10 didn't perform for me, to the same standards so many reported in their glowing commentaries. After going without a Bluetooth headset for a time, I began to reflect on the good qualities I did experience. I jumped at the opportunity to purchase another JX-10 when the price dropped.I am happy to proclaim the JX-10 is as good as others have reported!Beware, the second unit I purchased a was defective and had to be exchanged, which led me to believe the first unit I purchased, a month or two ago, may have also been defective. I would go as far as saying, if your JX-10 doesn't immediately exceed your expectations in performance, call Jabra customer service for support or exchange the unit.You may find this information important: My provider is Sprint and my phone model is the Samsung A900.I'm glad I gave the JX-10 a second (third) chance because it is truly an extremely high-end, high quality Bluetooth headset. Go get yours now!