Wii Sensor Bar

The sensor bar is an attachment placed either directly above or below the display screen (The Wii will come with a sensor bar stand). It is required for games and applications that use the remote as an on-screen pointer. With the sensor bar, it is possible to accurately pinpoint where on screen a remote is pointing, regardless of the size or type of display used; however, it has been advised to play approximately six feet from the screen for optimal results. Nintendo is currently working on reducing this distance to allow players to get closer to the screen while maintaining accuracy. The sensor bar is around 20 centimeters (approximately 8 inches) long. The sensor bar can be placed on top of the screen and on the bottom of the screen.

The sensor bar contains two sensors, one in each end. However, it is not yet known if it is used for the on-screen pointer or for other uses, such as triangulating the controller's position in 3D space.

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