Most phones sold these days have a speakerphone mode. This setting is usually good enough for an impromptu hands-free call in a quiet office. However, when you get on the road in a noisy car, the phone's flaws are made apparent. For example, the built-in microphone can be less than ideal for canceling the levels of road and wind noise present in a car at highway speed, which leads to poor quality on the receiving end of your calls. I'm sure that you dislike repeating yourself to callers as much as I do, so let's look at how to improve call quality.
Visor-mounted Bluetooth speakerphones feature more sophisticated microphones with noise and echo-cancellation technology located closer to your head, which can dramatically improve sound quality. How much of an improvement should you expect? I've recorded outbound calls from five speakerphones (and my test phone's internal microphone) to demonstrate. … Read more