The Wii Remote features an expansion port at the bottom which allows various functional attachments to be added.
The Nunchuk was the first attachment Nintendo revealed for the Wii Remote. It connects to the Wii Remote via a cord that is about 3.5 to 4 feet (1 ~ 1.2 m) long.
It features an analog stick similar to the one found on the GameCube controller and two buttons (a last-minute modification changed the two triggers to one trigger and a "C" button). It works in tandem with the main controller in many games.
Like the Wii Remote, the Nunchuk also provides a three-axis accelerometer for motion-sensing and tilting, but without a speaker, a rumble function, or a pointer function.
One Nunchuk comes bundled with the Wii console. Additional Wii Remote units are sold separately without the Nunchuk.
