A Wavebird (model number DOL-004) is the wireless version of the Nintendo GameCube controller. It features the same amount of buttons as the standard Gamecube controller. However, there is a switch between the D-Pad and the C-Stick, the switch that actually turns on the controller, while an orange square light below the switch turns on when the controller is on. Below the light is the word "WIRELESS". On the bottom of the controller is a lever that switches between the 16 wireless channels to which the controller can be set for multiple connections in multiplayer. [However, it is recommended that the players do not use channels that are close together (e.g. 1,2,3,4), so no interference occurs out of two different controllers attempting to use the same channel in gameplay.] Also, Rumble sup