Supertooth HD Voice is a breeze to use in the car

The big buttons on the Supertooth HD Voice make it super easy to use in the car. Also helpful? The background noise reduction.

These days, you'll find many Bluetooth speakerphone makers extolling the hands-free virtues of their in-car devices. Certainly, the $89 SuperTooth HD Voice allowed me to navigate calls using my voice, as opposed to constantly fumbling for controls by feel alone or----egads----taking my eyes off the road to pinpoint a button's precise location.

The HD Voice is a cinch to snap on and off the sun visor. You slide a clip on to the visor, and the HD Voice attaches firmly to the clip, thanks to the magnetic buttons.

Using my voice, I could pick up calls when they came in by saying "Answer"----sometimes just a grunt would do----after the HD Voice announced the caller from my address book. However, I wasn't able to give calls the heave-ho. Despite numerous attempts, the HD Voice didn't listen when I said "Reject" and sent the calls through. (Drat.) I still needed to hit the HD Voice's rotary button to end calls and spin it to adjust volume. The HD Voice compensates with the super-sized double-duty volume/call button which is easy to find by feel alone, in a way where the BlueAnt Commute's controls were not.

As far as call quality goes, overall, callers said my voice had a slightly higher-pitched sound to it, across the board, and my rambling had a subtle metallic or robotic tinge constantly. Some of the time, I sounded far away. All that said, people concluded that they could still understand what I was saying nonetheless. The HD Voice shoved freeway noise and music from my car stereo into the background admirably. Audio quality on the receiving end----that would be my end----proved to be steady to boot; callers' voices sounded pretty clear, if a bit speakerphone-ish.

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