 The Wii Remote is the primary controller for the console . It uses a combination of built @-@ in accelerometers and infrared detection to sense its position in 3D space when pointed at the LEDs in the Sensor Bar . This design allows users to control the game with physical gestures as well as button @-@ presses . The controller connects to the console using Bluetooth with an approximate 30 ft ( 9 @.@ 1 m ) range , and features rumble and an internal speaker . The Wii Remote can connect to expansion devices through a proprietary port at the base of the controller . The device bundled with the Wii retail package is the Nunchuk unit , which features an accelerometer and a traditional analog stick with two trigger buttons . In addition , an attachable wrist strap can be used to prevent the player from unintentionally dropping ( or throwing ) the Wii Remote . Nintendo has since offered a stronger strap and the Wii Remote Jacket to provide extra grip and protection . The Wii MotionPlus is another accessory that connects to the Wii Remote to supplement the accelerometer and sensor @-@ bar capabilities , enabling actions to appear on the screen in real time . Further augmenting the remote 's capabilities is the Wii Vitality Sensor , a fingertip pulse oximeter sensor that connects through the Wii Remote . 
