If you're going to make phone calls while riding on a motorcycle, hands-free Bluetooth is key! I tried out Cardo's Scala-Rider headset, made just for bikers. The phone recognized the device easily when I started it up, and it answered perfectly with the voice command setting on. Buttons are easy to find while riding, via the raised rubber divider.

But what I especially liked about the unit was that it was smart enough to adjust the volume (thanks to AGC technology) as I increased speed. That's a feature this city rider needs, because I have to hear what's going on around me when I'm pulling up to stoplights. I could hear very well even at high speeds and in noisy city traffic. The headset also looks good on a helmet, since it's not too big. If you need to recharge the device or if you leave your helmet on your bike you can easily slide the unit off of the helmet with the push of a button.

Certain functions didn't work with my phone, such as enabling the voice command to call an entry in the my stored numbers. I had to make the call from the handset or press the redial button. I got the FM radio working, and my calls interrupted the music and returned when I was through. While using the device, I missed a call or two, but that could have been caused by poor phone reception. I finally called my work phone to test the sound for myself; I forgot to end the call, and wound up recording 16 minutes of cursing out cars while riding through traffic.

Overall, I really like the Scala-Rider Bluetooth headset. It's comfortable, lightweight, and offers clear sound.