The wii remote
To make menu selections. Pint with the 'Wii Remote and press File:A Button.png. Check the on-screen information for details on how to control specific activities and exercises.
The Wii Remote is the primary controller for the Nintendo Wii. It is also commonly short as a wiimote. It is unique when compared to other controllers because not only is it shaped like a TV remote instead of a traditional gaming controller, it also has motion sensing technology via accelerometers and IR sensors. The Wii Remote or "Wiimote" is used in all Wii games. The Wii remote has a built in speaker and a extra connection port at the bottom which is used for connecting to the Nunchuk, Classic controller, Wii Zapper, and Wii Wheel. The Wii Remote is run on two AA batteries.
Sensing
The Wii Remote uses IR technology for its pointing abilities. The IR sensors on the front of the remote detect the IR LEDs of the sensor bar and use their location to triangulate where you are pointing on the screen. The use of this technology is mainly for navigating menus but has been used in other applications for example The Internet Channel. It has also shown the ability to sense when the sensor is covered. For example in a WarioWare: Smooth Moves mini game that if you do not uncover it the drink will not spray on the people.
The Wii Remote has the ability to sense acceleration along three axes through the use of an Analog Devices ADXL330 accelerometer.