To put the Slim EX1 Wireless Keyboard into Bluetooth pairing mode, press and hold the Fn key and one of the three Bluetooth keys for 3 seconds until the white LED starts blinking.

1. Turn on the Slim EX1 Wireless Keyboard.
2. Press and hold Fn and the Bluetooth key you want to use (1, 2, or 3) for 3 seconds. The white LED starts blinking.
3. On your device, open Bluetooth settings, select "EX1 Keyboard", and choose Connect.
4. The white LED stops blinking when pairing is complete.

Repeat these steps to pair up to three Bluetooth devices. To switch between Bluetooth 1, 2, 3 and the 2.4GHz receiver, press Fn + Q, W, E, or R.