The Jabra SP200 Speakerphone for iPhone 3G/3GS [$59-95 - iMore Store link] is a great Bluetooth headset alternative that you really have to try yourself to fully appreciate. I can not recommend it enough.
I've been using the Jabra SP200 for about a month now and I can honestly say that I've stopped using every single Bluetooth headset I own while driving my car. Simply connect the SP200 to your cars visor, flip the power switch and you are good to go. And go you will - Jabra claims the battery life comes in at 10 hours of talk time and 23 days of standby time. I am happy to report that these claims are dead on accurate.
Now to get to the most important part of a Bluetooth device, sound quality. I was pleasantly surprised on how well not only the person I would speak to sounded, but how well I came across to them as well. Volume is definitely not an issue with the SP200 as not once have I had to turn it up to it's full capability.
As for controls it's pretty simple. You have a volume dial, power switch, and a answer/hang up button that also doubles as an redial button. A great feature that I enjoyed greatly was the ability to leave my car without turning the device off. If I was gone for less than 15 minutes, as soon as I got into my car the device would automatically detect my iPhone and connect instantly. After the 15 minutes if you do not get back into your car, it will automatically power itself down. A simple touch of the answer button will make the re-connection. Need more specs?
The Jabra SP200 Bluetooth Speakerphone can be purchased for $59.95 from the TiPb iPhone Store.
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