This is a very cool handset for your mobile phone. Although there is a certain irony going “backwards” in style.
Having said that, it does well as a “desktop” handset – i.e great for having on your desk for “wedging” on your shoulder whilst talking.
You can answer and finish calls via a small button on the handset and it comes in a very tast full “soft touch” texture. 
It is compatible with any handset with a 3.5 mm jack, but you can get adaptors that will convert for most phones. Including a USB version for your computer and VoiP calls.
All in all very handy – have a look here -
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