A4TECH FBX55C Bluetooth and 2.4G Wireless Keyboard

WHAT’S IN THE BOX

THE FRONT

- 12 Multimedia & Internet Hotkeys
- One-Touch 6 Hotkeys
- Multi-Device Switch
- Operating System Swap
- PC/MAC Dual-Function Keys
THE BOTTOM

CONNECTING BLUETOOTH DEVICE
(For Mobile Phone/Tablet/Laptop)
- Short-press FN+7 and choose Bluetooth device 1 and light up in blue.
- Long-press FN+7 for 3S, and the blue light flashes slowly when pairing.
- Choose [FBX55C] from your Bluetooth device.
- The indicator will be solid blue for a while, then turn off after the keyboard is connected.
CONNECTING BLUETOOTH DEVICE
(For Mobile Phone/Tablet/Laptop)
- Short-press FN+8 and choose Bluetooth device 2, and light up in green
- Long-press FN+8 for 3S, and the green light flashes slowly when pairing.
- Choose [FBX55C] from your Bluetooth device
- The indicator will be solid green for a while, then turn off after the keyboard is connected.
CONNECTING BLUETOOTH DEVICE
(For Mobile Phone/Tablet/Laptop)
- Short-press FN+9 and choose Bluetooth device 3 and light up in purple
- Long-press FN+9 for 3S, and the purple light flashes slowly when pairing.
- Choose [FBX55C] from your Bluetooth device
- The indicator will be solid purple for a while, then turn off after the keyboard is connected.
CONNECTING 2.4G DEVICE
- Plug the receiver into the computer’s USB port.
- Use the Type-C adaptor to connect the receiver to the computer’s Type-C port.
- Turn on the keyboard power switch.
- Yellow light will be solid (1 OS).
- The light will be off after connecting.
OPERATING SYSTEM SWAP

Note: The layout you used last time will be remembered. You can switch the layout by following the above step.
INDICATOR
(For Mobile Phone/Tablet/Laptop)
ONE-TOUCH 6 HOTKEYS

Note: Supports Windows System Only
REVOLUTIONARY ANTI-GHOSTING
Supports 2.4G Mode & Windows OS Only
- Note: Multi-key rollover ensures smooth typing and precise multi-key input, eliminating key conflicts for efficient workflows and competitive gameplay.

COMBINATION FN KEYS

OTHER FN SHORTCUTS SWITCH
Note: The final function refers to the actual system.
DUAL-FUNCTION KEY
Multi-System Layout
CHARGING & INDICATOR
Warning: Limit charge to 5V (Voltage)
The Flashing Red light indicates when the battery is below 15%.
SPECIFICATIONS
- Connection: Bluetooth / 2.4GHz
- Operating Range: 5—10 M
- Multi-Device: 4 Devices (Bluetooth x 3, 2.4G x 1)
- Character: Laser Engraving
- Report Rate: 1000 Hz (2.4G Mode), 125 Hz (Bluetooth Mode)
- Total Travel Distance: 2.0 mm
- Battery: 300mAh Lithium Battery
- Includes: Keyboard, Nano Receiver, Type-C Adaptor,
- USB Extension Cable, Type-C Charging Cable, User Manual
- System Platform: Windows / Mac
WARNING STATEMENT
The following actions may/cause damage to the product.
- To disassemble, bump, crush, or throw into the fire, you may cause irreparable damage in the event of the lithium battery leakage.
- Do not expose to strong sunlight.
- Please obey all local laws when discarding the batteries. If possible, please recycle them.
- Do not dispose of it as household garbage; it may cause a fire or an explosion.
- Please try to avoid charging in the environment below 00c.
- Do not remove or replace the battery.
- Please use the charging cable included in the package to charge the product.
- Do not use any equipment with a voltage exceeding 5V for charging.
The Bluetooth word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc., and any use of such marks by A4tech is under license.- Other trademarks and trade names are those of their respective owners.
CUSTOMER SERVICE
- www.a4tech.com
- Scan for E-Manual

Frequently Asked Questions
How to switch layout under different system?
You can switch layout by pressing Fn + O / P under Windows I macOS.
Does the layout can be remembered?
The layout you used last time will be remembered.
How many devices can be connected?
Interchange and connect up to 4 devices at the same time.
Does the keyboard remember the connected device?
The device you connected last time will be remembered.
How can I know the current device is connected or not?
When you turn on your device, the device indicator will be solid. disconnected: 5S, connected: IOS
How to switch between connected Bluetooth device 1-3?
By pressing FN + Bluetooth shortcut 7- 9.
Documents / Resources
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A4TECH FBX55C Bluetooth and 2.4G Wireless Keyboard [pdf] User Guide FBX55C, FBX55C Bluetooth and 2.4G Wireless Keyboard, FBX55C, Bluetooth and 2.4G Wireless Keyboard, 2.4G Wireless Keyboard, Wireless Keyboard, Keyboard |

