Most probably yes :D There are two usb Ports that are available behind the console. And check that the usb headset is compatible with the wii. In my own experience, i even use my own usb speaker to hear my music while playing Wii Sports :D Hope this helps.
Chat with our AI personalities
No you can't. You have to use the microphone included with the game to speak through the game.
If it is a USB port charger - plug it into the back of your Wii (which should have a USB slot) or plug it into any other USB port such as a laptop & games console!
Just about any Logitech USB Microphone will work! Even an Xbox360 Headset will work.
Any USB Microphone
Any microphone from any other game on the xbox 360, ps3 and wii. Because the microphones from these consoles use a USB wire, socket, thing... You can also use the headset that connects to the controller.