I really don’t know if the Wii will use *any* USB microphone, or a microphone with a USB convertor. My recommendation is to stick with the Logitech or Konami branded microphones; they come with all the Karaoke Revolution, Sing It, Guitar Hero and Rock Band games and work across PS2, PS3, 360, or Wii. You’ll notice at the links below, besides the color, the mics are physically the same. Just look for the box with “Logitech” or “Konami” close to the USB end. (Note that the Singstar and Lips mics that have 2 mics that go into a junction box with a single USB end will NOT work.