Wii Speak Compatibility with Modern Warfare 3: Not Compatible

The Wii Speak peripheral is not compatible with Call of Duty: Modern Warfare 3 (MW3).

Wii Speak was designed exclusively for the Nintendo Wii and uses proprietary connection/software incompatible with the PlayStation 3 and Xbox 360—the platforms MW3 was released on.

For voice chat in MW3, use a headset compatible with your specific console (PS3 or Xbox 360).