Motorola puts out some very good products, but this one (Motorola H500 Headset) was a real disappointment.  It is compact and easy to sync to a phone.  But the volume is way, way, too low to be useful in most stituations, particularly traffic.  I have adjusted it a number of times to the highest setting and it is about half the volume of other bluetooth ear pieces I have.  Good price, poor buy.