If you're focus is blue-tooth desk phone that can work with a mobile phone this rocks. I can get 50 feet from my office and still be on the phone. The sound is clear with no problem. it also connects to my mobile phone well.But, I sometimes have problems with the connection with the cell phone going away and I have to go back into my cell phone and reconnect to the headset. it's a little frustrating. I use a Blackberry 8700.Once it's connected it is a very clear headset that handles wind and other problems well. If it just didn't disconnect I would give it a five and recommend it a lot more.