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Joy-Con is the main controller connected to Nintendo Switch, which is divided into two independent left and right controllers, each of which contains an analog joystick and a set of keys.

Joy-Con can be physically connected by sliding in the tracks on both sides of the tablet body, and can also be detached and connected via Bluetooth. In some specific games, Joy-Con also allows a single player to be used as a controller. At the same time, Joy-Con is equipped with a variety of functions to meet the needs of different games and enhance the game experience.

Joy-Con has built-in accelerometer and gyroscope, which can realize more advanced motion control and give players a better somatosensory operation experience. In addition, the built-in speaker can sound the player according to the situation.

Joy-Con's built-in "high-definition vibration" function can not only bring a sense of presence that pictures and sounds can't be perfectly conveyed during the game, such as the driving feeling or drift acceleration of off-road roads in Mario Kart 8 Deluxe Edition, but also provide a more detailed vibration experience. From details to whether there is water in the cup when shaking, a few pieces of ice can simulate the difference.

Left Joy-Con has a special screenshot button, which can take a screenshot with one click. Right Joy-Con supports NFC function and can be used with amiibo. There is also a "motion-sensing infrared camera" built in the bottom, which can read the shape, motion and distance of the object captured by the camera. By recognizing gestures such as guessing boxing, the unique input operation is displayed. For example, the principle of measuring heart rate in "Great Adventure in Fitness Circle" is to irradiate infrared rays from the somatosensory infrared camera of the right Joy-Con on the fingertips to detect subtle reflection changes.