Steve
I have got the Active Rider Kit 3 which includes:-
Headset speaker loom
Boom microphone
Headset Extension Lead
Active-7 Smart box
Phone interface lead
And Kit 4 which is the Passenger Headset kit.
This is a quality piece of kit - I had previously been given a £20 kit which only worked upto about 40 mph, however that proved that talking to a pillion whilst riding wasn't at all off putting.
The Autocom has stereo speakers (excellent sound quality if you want to plug in an MP3) and give excellent sound quality even at 105mph with earplugs in
. The VOX works really well - the only tricky bit is getting used to having to have the mike literally on your lips when speaking.
Would definately recommend it (I think I paid about £165 at last years NEC).
If you can get yourself down to Southampton, then happy to give you a demo on the SV1000!