The multi-device function allows you to connect the keyboard to your PC, tablet, or smartphone and switch between them instantly. TECPHILE RK908 Muti-device Bluetooth Wireless Keyboard
: Dual mode (Bluetooth 5.0 and USB Type-C wired).
FN + Win (Prevents the start menu from opening during games). Switch to Mac Mode: FN + S Switch to Windows Mode: FN + A ❓ Troubleshooting Common Issues Keyboard won't connect in Bluetooth mode? Make sure the switch on the back is set to "B."
: Flip the power switch on the side or back of the keyboard to the "ON" position.
Cycles through the built-in RGB or single-color lighting patterns. FN + Up / Down Arrow rk908 bluetooth keyboard manual link
: A full charge takes approximately 2.5 to 3.5 hours . Official Resources & Manual Links
You do not need external software to manage your keyboard's basic visual profiles. Use the following hardware combinations directly on the board:
Plug the other end into a USB wall adapter or computer USB port.
: Long press the same combination (e.g., Fn + Q ) for about 3 seconds. The indicator light (often the Q key itself) will flash rapidly, signaling it is discoverable. The multi-device function allows you to connect the
Check your computer's language input settings to ensure it matches the physical layout. Keyboard Goes to Sleep Go to product viewer dialog for this item.
: Increase or decrease backlight animation speed. Factory Reset
The link took her to a sparse page — plain white, sans-flourish, as if someone had hurriedly uploaded the essentials and fled. Step 1: power on. Step 2: hold Fn+B for five seconds. Step 3: look for RK908 in your Bluetooth list. Beneath the steps, a single troubleshooting paragraph admitted, with polite shame, that sometimes devices paired to a phantom “RK908_0001.” If that happened, the cure was simple: remove the ghost from the device list and retry.
Hold for 3 seconds to clear all Bluetooth pairings and restore defaults. FN + A Switch to Mac Mode: FN + S Switch
: Use FN + ↑ or FN + ↓ to adjust the backlight intensity.
: Short press FN + 1 or FN + 2 to select the desired Bluetooth channel.
: The RK FAQ Page provides official troubleshooting and pairing guides for all RK models.