To switch devices on the Slim X3 Bluetooth Backlit Keyboard, press the Bluetooth key (1, 2, 3, or 4) assigned to the device you want to use. The Slim X3 Bluetooth Backlit Keyboard can pair with up to four devices.

Each device must first be assigned to its own Bluetooth key:

1. Press and hold one of the Bluetooth keys for 3 seconds. The white LED starts blinking.
2. On your device, open the Bluetooth settings, choose "Slim X3 Keyboard", and select Connect. The white LED stops blinking when pairing is complete.
3. Repeat with another Bluetooth key for each additional device, up to four.