Its literally called Logitech USB Desktop Microphone. It has very mixed reviews.
Any reason that a clip-on is no use to you? The ~£7 Speedlink SPES is excellent for the money, and there is a dx.com clip on mic that performs near identically for a mere £1.56.
Condenser mic SF-666 7 pounds on ebay just like a studio mic

it can be a close up mic or pick everything up in the room mic, if u boost it , but yea ied say it has 70% the quality of a expensive studio mic