The Wii Speak accessory is a hands-free microphone for the Wii console that rests on top of your TV set. Together with the Wii Speak Channel, you can use the Wii Speak accessory to talk with your Wii Friends who also have a Wii Speak accessory or send them voice messages even if they're on the other side of the world.
The Wii Speak microphone gives you the ability to chat with friends near and far when playing compatible games such as Animal Crossing: City Folk and the Wii Speak Channel.
The Wii Speak Channel lets people in up to four locations, who have the Wii Speak Channel and microphone, and have traded Friend Codes, chat with one another using their broadband internet connections. When chatting through the Wii Speak Channel your Mii appears on the TV screen and mimics your chat. You also can leave audio messages for your friends and family members or use Wii Speak to narrate captions for your photos.