"The Polycom of Bluetooth Speakerphones"4.5 starson by tharrington
Pros: Great sound quality both directions.
Cons: Weak FM signal.
Summary: While this speakerphone won't be found in any boardrooms like the Polycom speakerphones, it's sound quality is almost on par. The unit is about the same width and 1/2 the length of a pack of cigarettes. It has the classic, removable, elongated "C" shape visor clip to mount it to your car visor, which it grips like an alligator.
It has a built-in 2.5w speaker, which sounds just fine, or you can use the FM transmitter to listen to your callers or music playing on your smartphone. I found I have to increase the volume of my car audio system about 25% to get the same volume level as an FM radio station.
The power button is on the left rear of the unit and the call button is on the left front, meaning you have to be carefull to not press both functions when you are trying to turn the unit on. The unit will automatically power down when it no longer detects the Bluetooth device it is paired to, greatly increasing battery life.
The unit does a good job of finding an empty space in the FM spectrum to transmit on and announces the frequency when you turn the unit on. You have to turn on the FM transmiiter manually with a button on the right rear, with a white LED indicator that shows you it is working. The FM transmitter turns off within a few seconds after completing a call, unless you are streaming music to it.
Overall, I'd say CNet's review is pretty accurate and I can highly recommend this product.