(Currently, it does not support infrared photography and NFC functions cannot operate with fitness rings.) The controller connects to the main unit and the charging method is as follows: Insert the left and right controllers into the designated rails on both sides of the Switch console. After inserting, you will hear a locking sound (along with prompts). The connection and identification of the controller insertion will occur. To disconnect the Bluetooth connection: If the controller is in a Bluetooth connected state, you can press the sync button on the rail to disconnect the Bluetooth connection of the controller, allowing it to enter sleep mode. Long press the sync button on the controller for 3 seconds, and you will see the player number lights activate, then press any button (excluding the 3D button) on the controller. For Bluetooth connection: Remove the two controllers from the console (press the rail lock button to detach the controller). Once removed, the controller will automatically enter Bluetooth connection mode. The player number light will stop blinking and the LED light will illuminate (the number of lights and their positions indicate the corresponding channel number for Bluetooth connection), while the four LEDs of the Bluetooth-connected controller will light up in green squares matching the corresponding player's controller number light. Once the Bluetooth connection is established, the controller can be used for compatible game operations. The effective Bluetooth range is typically 8 to 10 meters. Please allow for some color variation due to different lighting conditions.