The Jabra Clipper looks good. It is a small, rubber-coated, metal clip. The design is supposed to allow you to wear it, but as other reviewers have mentioned, it is difficult to clip to any item of clothing. I settled for wearing it in a shirt pocket or in an inside pocket of a jacket (and effectively rendering the microphone useless). The clip has a built in microphone, up and down volume controls and a central button that allows you to control an ipod type of device. I was using it with an iphone 3GS successfully. The controls themselves were easy to work (unlike the fiddly inline-remote used in the original apple headsets). I was using the device with a pair of Bose on-ear headphones and, as far as I could tell, there was no further loss of quality in the music I was listening to. The problem with the device is the poor bluetooth connectivity which makes using the device in a real world setting impossible. When placed next to iphone, the connectivity was good and the devices paired easily, however when the iphone was placed in a bag (rucksack) or a pocket then the connectivity was intermittent. These can only really be used when the iphone and the device are colocated, which defeats the object of having the bluetooth remote.
Overall, the clipper is a nice design, but with a poorly implemented bluetooth interface. Best avoided.
I have returned the clipper, and instead, purchased a pair of wired headphones for listening to music on the go.