Hi James and Keith, yeah the watch is the U8 Bluetooth Smart Watch, I got mine from this seller but you could grab one from anywhere, just search for the cheapest seller.
http://www.ebay.co.uk/itm/331516971964Basically any Bluetooth smart watch should work though as long as it has a speaker and microphone, they are all designed to be paired to a mobile and answer the mobile with a hands free speaker. So when you scan with your computers Bluetooth it pics up the smart watch and shows it has a mic and speaker, so you can use it for audio input into vox.
I needed the TTS audio output because if you try and output the system audio through the watch it sends it ino a crazy loop as the mic hears itself when you speak, with the TTS output through it, both mic and speaker can be used.
I just ordered another Bluetooth watch on Monday that is a different make, it was only £10 ($15), but has a mic and speaker built in also, so going to see what this is like for a microphone.
Here is that model, but I will update you guys on what it is like after I have played around with it, hopefully arrive tomos.
http://www.ebay.co.uk/itm/271678241842They all have a 10 meter or full room range, although I can leave front room and go to the kitchen, but as a device to control the front room it's cool, if your Bluetooth auto reconnects when returning within range of pc you won't even notice the disconnection.
The watch in video above, battery lasts a good two days on standby, got mine last Friday and didn't need to charge it until sometime Sunday after playing with it.