Mechanical gaming keyboard A4TECH Fstyler FBX50C – User Manual

User Manual – Wireless Keyboard A4TECH Fstyler FBX50C, USB, Bluetooth / Radio Channel

Thank you for purchasing the A4TECH Fstyler FBX50C keyboard. This product features various functions and lighting effects. We hope it provides you with new experiences in your work.

This is a universal keyboard that allows you to input data and communicate on all devices you use: Windows, Mac, Chrome OS, Android, iPad, iPhone, and more.

Product Specifications

Connection type: Wireless
Connection modes: Bluetooth / 2.4 GHz
Operating range: up to 10 m
Key shape: Ultra-thin
Key profile: Laptop style
Key mechanism: Scissor
Hot multimedia keys: 12 Fn
Printing: Silk-screen + UV
Battery: 300 mAh
Number of connected devices: 4 devices (Bluetooth x 3, 2.4 GHz x 1)
Layouts: Windows | Android | Mac | iOS
Receiver: Nano USB receiver
Package contents: Keyboard, nano receiver x 1, USB extension cable, Type-C charging cable, user manual
Operating systems: Windows / Mac / iOS / Chrome / Android / Harmony OS...

(!) Wireless connectivity may vary depending on user environment and computer.

(!) Battery life may vary depending on usage conditions and computer.

(!) Please note that all information provided is for reference only and under no circumstances constitutes a public offer. Technical specifications, software, design, and package contents may be changed to improve products without prior notice.

Package Contents

1. Wireless keyboard Bluetooth/2.4 GHz
2. 2.4 GHz nano receiver
3. Type-C charging cable
4. USB extension cable
5. User manual

Device Layout

1. FN lock mode
2. Hotkeys for access to 12 multimedia and internet functions
3. Device switching
4. Device indicator
5. Switching between operating systems
6. PC/MAC function keys

Side View

7. Receiver storage compartment
8. 2.4 GHz connection
9. Power On/Off
10. Type-C charging port

2.4 GHz Device Connection

1. Plug the receiver into the USB port of the computer.

2. Switch on the keyboard power.

3. Indicator: The LED will light red for 10 seconds. After connection, the LED will turn off.

(!) Note: For connection to the nano receiver, it is recommended to use the USB extension cable (make sure the keyboard is within 30 cm of the receiver).

Connecting BLUETOOTH Device 1
(for mobile phone / tablet / laptop)

1: Briefly press [1] to select Bluetooth device 1 – the indicator will light up red.

Press and hold [1] for 3 seconds – the LED will flash red slowly during pairing.

2: Select [ A4 FBX50C ] on your Bluetooth device.

The indicator will stay solid red for a short time, then turn off once the keyboard is connected.

Connecting BLUETOOTH Device 2
(for mobile phone / tablet / laptop)

1: Briefly press [2] to select Bluetooth device 2 – the indicator will light up red.

Press and hold [2] for 3 seconds – the LED will flash red slowly during pairing.

2: Select [ A4 FBX50C ] on your Bluetooth device.

The indicator will stay solid red for a short time, then turn off once the keyboard is connected.

Connecting BLUETOOTH Device 3
(for mobile phone / tablet / laptop)

1: Briefly press [3] to select Bluetooth device 3 – the indicator will light up red.

Press and hold [3] for 3 seconds – the LED will flash red slowly during pairing.

2: Select [ A4 FBX50C ] on your Bluetooth device.

The indicator will stay solid red for a short time, then turn off once the keyboard is connected.

Switching Operating System

Windows / Android – this is the default system layout.

(!) Note: The previously used system layout will be saved. You can switch the layout by performing the above steps.

Indicators
(for mobile phone / tablet / laptop)

Keyboard	2.4 GHz Device	Bluetooth Device 1	Bluetooth Device 2	Bluetooth Device 3
Indicator	Red light	Red light	Red light	Red light
Switching between devices
Switch: short press for 1 sec	Constant light for 10 sec	Constant light for 5 sec
Device pairing: long press for 3 sec	No pairing required	Pairing: slow flashing Connected: constant light for 10 sec

FN Combinations

FN Mode: you can lock and unlock FN mode by pressing FN + ESC alternately.

1. FN Lock Mode: no need to press the FN key.

2. Unlock FN Mode: FN + ESC

(!) After pairing, the FN key is locked in FN mode by default, and the lock state of the FN key is preserved when turning on and off.

Windows / Android / Mac / iOS

F1: Home
F2: System switch
F3: Back
F4: Search
F5: Input switch
F6: Screenshot
F7: Previous track
F8: Play/Pause
F9: Next track
F10: Mute
F11: Volume down
F12: Volume up

Other FN Combinations

Key Combination	Windows	Android	Mac/iOS
[Fn] + [DELETE]	Pause	Pause	Pause
[Fn] +	Brightness +	Brightness +	Brightness +
[Fn] +	Brightness -	Brightness -	Brightness -
[Fn] + [BACKSPACE]		Screen Lock	Screen Lock (iOS only)
[Fn] + [ENTER]	Scroll Lock	Scroll Lock

(!) Note: the last function corresponds to the active system.

Dual-Function Keys

Multi-System Layout

Low Battery Indicator

When the battery level is below 10%, the LED flashes red.

USB TYPE-C

(!) Warning: limit charging to 5 V (voltage)

Solid red light: charging in progress. Charging time is about 2.5 h
LED off: fully charged

The built-in 300 mAh lithium battery can be used for up to 3~5 months on a full charge.

(!) Battery life may vary depending on usage conditions and computer.

Technical Specifications

Model: FBX50C
Connection: Bluetooth / 2.4 GHz
Operating range: 5 ~ 10 m
Number of connected devices: 4 devices (Bluetooth x3, 2.4 GHz x1)
Layout: Windows | Android | Mac | iOS
Battery: 300 mAh lithium battery
Receiver: Nano USB receiver
Package contents: Keyboard, nano receiver, USB extension cable, Type-C charging cable, user manual
System requirements: Windows / Mac / iOS / Chrome / Android / Harmony OS…

Frequently Asked Questions

How to switch the layout for another system?

You can switch the layout by pressing Fn + 1/O/P in Windows | Android | Mac | iOS.

Can the layout be saved?

The layout you used previously will be saved.

How many devices can be connected?

You can connect up to 4 devices simultaneously.

Does the keyboard remember the connected device?

The device connected during the previous session will be remembered.

How can I check if the current device is connected?

When powered on, the device indicator will remain steady. (Disconnected: 5 sec, Connected: 10 sec)

How to switch between connected Bluetooth devices 1-3?

Press the individual Bluetooth buttons (, , ) in the top-right corner of the keyboard.

Warning

The following actions may damage the product.

1. Do not disassemble, hit, crush, or throw the battery into fire.

2. Do not expose to direct sunlight or high temperatures.

3. Battery disposal must comply with local regulations; recycle if possible. Do not dispose of batteries with household waste as this may cause explosion.

4. Do not charge the battery at temperatures below 0°C.

5. Do not remove or replace the battery.

6. Use the included cable for charging.

7. Do not use any equipment with voltage higher than 5 V for charging.

PURPOSE:

This device is intended for inputting information into a computer.

STORAGE CONDITIONS:

Store the device at temperatures from +5 to +40 °C with relative humidity not exceeding 85%, avoiding direct sunlight.

TRANSPORTATION CONDITIONS:

It is recommended to transport the device in its original packaging.

SALES CONDITIONS:

The device does not require special sales conditions.

DISPOSAL CONDITIONS:

For device disposal, please contact a specialized center.

INSTALLATION RULES AND CONDITIONS:

This device does not require installation or permanent mounting.

Information on usage limitations considering intended use in residential, commercial, and industrial areas:

The device is intended for use in residential, commercial, and industrial areas without exposure to hazardous or harmful factors.

The manufacturer reserves the right to change the package contents, specifications, and appearance of the product.
The manufacturer and distributors of this product are not responsible for damage to the device casing or for any damage caused by improper or inappropriate use by the user.

Manufacturer:
A-FOUR TECH CO., LTD., Taiwan, 6F, No.108,
Min-Chuan Road, Xindian District, New Taipei City, Taiwan R.O.C.
A-Four Tech
Co., Ltd., Taiwan, 6F, No. 108,
Min-Chuan Rd., Xindian District, New Taipei City, Taiwan (R.O.C.)
Importer: LLC "Merlion"
Address: 143401, Moscow Region, Krasnogorsk, Stroiteley Blvd, 4, Bldg. 1, 8th Floor, Office 819
Authorized representative designated by the manufacturer for conformity confirmation and for assuming responsibility for non-compliance with the requirements of the Technical Regulations of the Customs Union: LLC "Computer Clinic Network"
Address: 127521, Moscow, Sheremetyevskaya St., 47, 2nd Floor, Office 31

Production date: see packaging.
Warranty period: 1 year. Service life: 1 year
Shelf life: unlimited. Made in China.