Aside from the stereo Bluetooth capability and the FM transmitter, you get some basic features. They include answering, ending, and rejecting calls, last number redial, voice dialing if your phone supports it, and call mute. It also has night driving mode that senses the lack of sunlight, and will shut off the LED indicators so there are no interfering lights when driving at night.
One of the better features of the SP700 is that it gives out voice announcements to tell you the speakerphone's status. It'll let you know when it's powered on, when it's powering down, when it's paired, and when the FM is enabled. It will also announce the incoming caller ID, which we liked quite a bit. If you have FM transmission enabled at the time of an incoming call, the caller's number is actually displayed on your radio using RDS (Radio Data System)--another nice bonus. The Jabra SP700 can provide voice announcements in up to 10 different languages.
We paired the Jabra SP700 with the Apple iPhone 3G and the LG Incite. We were quite impressed with the call quality; callers could hardly hear background noise and there was little-to-no echo from our end. They could still pick up road noise, but it wasn't that bad. That said, we have heard reports that road noise is a bigger issue in larger vehicles, so test it first if you have a van or a truck. We heard our callers loud and clear. We did get quite a bit of static occasionally, but it wasn't a deterrent.
Since the iPhone 3G doesn't have stereo Bluetooth, we tested the streaming music with the LG Incite. The SP700 immediately started to stream music from the phone, without any prompts. The audio quality is on the tinny side of course, but like the call quality, it has plenty of volume.