Wireless Microsoft Gamepad FOR WINDOWS as well as Xbox 360 console - it comes with the wireless PC dongle. Easy to setup. Is around £33 in most other stores I was looking at (incl online at Amazon). Do not confuse this with the other Xbox 360 standard wireless controller (for console, i.e. that you see at Argos) that requires an additional dongle if you wish to use on PC.
In stock at Warren Street but not Oxford Circus branch.