This is really a fine set for most regular conditions. However; I drive semi and even though todays trucks are fairly quiet inside it's still a bit too noisy for using while going down the road (Although I have no problem when I use it driving my personal vehicle down the road). The biggest problem while on the road or any place where there's some background noise is with the automatic dialing. Very seldom does it come across clear enough for the phone to recognise who it is you want to dial.The other problem is more prevelant when talking to someone on another cell phone. Sometimes it's difficult for them to understand you while going down the road too. Although it does sometimes happen with land lines, I've only had a couple incidents with those compared to several when talking with someone on another cell.I've moved this unit home so I can use it in milder conditions and will be looiking for the Bluetooth headsets that have the mic on a stem that comes down to the mouth. My older headsets (Not Bluetooth) were that way and generally I had no problem being understood while on the road. But if you're looking for a good headset for general every day use I think you get your money worth with this one...