MCU: Sino SH68F90 BLE7KEYS TW1867Bluetooth Name Function: Wired and Wireless Mode Switching Fn + RSwitching between wired and Bluetooth mode aWired Mode LD1 shows red color bWireless(Bluetooth) Mode LD1 shows blue color Memorial function is in both wired and Bluetooth working mode Note: In Bluetooth mode,the keyboard will be dormant in 5 minutes if it doesnt work(including the keys and roller button) . In wired mode,it sleeps in sync with PC. Bluetooth Matching Keyboard can match 3 different devices which correspond to the keys Z, X and C. There are 2 ways to achieve Bluetooth pairing.(the following/represents or 1.Pressing and holding 3secs Fn + Z/X/C until the indicator light (blue) slow flashing, keyboard enters the pairing code state. If connected successfully, Blue LED is always on, and the connection information is saved to the corresponding keys, you can connect back to the corresponding device by pressing Fn + Z/X/C (corresponding keys you chose) shortly if you want. 2.Short pressing the Fn + Z/X/C (selecting the corresponding device), and then fast flashing of blue indicator light indicates that it enters the back-connected state (which can be connected to the previously connected device). At this moment, press the code matching switch to realize a new device connected. Refer to the indicator light at Point 1. If Fn+Z is paired with a device successfully, long pressing 3secs for Fn+Z or short pressing Fn+Z and then pressing the code matching switch can be paired with new device. Notes: 1.When the Bluetooth and the device is successfully connected together and the keyboard doesnt work, it will go to dormancy in 5 minutes. If pressing some keys at this time, there will be a delay phenomenon because Bluetooth is in the back-connected state (it takes some time from the beginning of back-connected state to the success of back-connected state). 2.The backlight may not be on when the USB cable is not connected to PC.The keyboard can be switched to Bluetooth mode at this time. 3.The keyboard can only be used in Bluetooth version 4.0 or above and Win 10.