1. Download link for KB3：
Quick start guide: Click here
USB Audio driver for HiFi edition: Click here
2. The difference between the three editions:
HiFi Wired Standard Edition/Custom Kit Edition
HiFi functionality;
All inputs/outputs(3.5mm SE/4.4mm balanced dual headphone jacks) ;
Dual CS43131 DACs+dual SGM8262 op-amps;
Support for up to 32bit/384kHz and DSD256;
Capable of providing 550mW of output power;
The 3.5mm single-ended headphone jack on the KB3 supports TRSS headsets, allowing you to enjoy HiFi music while smoothly communicating with others when playing games.
Two USB ports for connecting your mouse and USB drives
The four indicator lights on the right side of the keyboard (from top to bottom):
CAPS WINLOCK MAC system WIN system
Wireless Edition
No HiFi functionality;
Supports 2.4Ghz/Bluetooth/USB connection;
Supports up to 5 devices connection (3x Bluetooth,1x 2.4Ghz, 1x USB);
Equipped with 4000mAh internal battery and battery life can reach 2000+ hours;
Mac/Win dual-system support;
The four indicator lights on the right side of the keyboard (from top to bottom):
CAPS BT 2.4Ghz Battery indicator
Battery indicator status:
Charging mode(Connect to USB port for charging):
Red:Charging
Green: Fully charged
Non-charging mode:
Green:Remaining power 70-100%
Orange: Remaining power 50-70%
Yellow: Remaining power 30-50%
Red: Remaining power below 30%
Low battery mode: Battery indicator flashes red, indicating low battery.Please charge the keyboard.
3. Instruction of the FN shortcut key
| Fn + | ESC | Reset | |
| F1 | Brightness - | In Win system; In MAC just click F1/F2/F3/F4 key the function will work | |
| F2 | Brightness + | ||
| F3 | Lightning effects positive loop | ||
| F4 | Lightning effects negative loop | ||
| F5 | ALT+TAB | Only in Win system | |
| F6 | WIN+D | ||
| F7 | Search | In Win system; In MAC just click F7 key the function will work | |
| F8 | Lock Win key | Only in Win system | |
| F9 | Player | In Win system; In MAC just click F9/10/11/12 key the function will work | |
| F10 | Pre track | ||
| F11 | Play/pause | ||
| F12 | Next track | ||
| knob | Click: mute/Scroll down volume -/Scroll up volume + | ||
| -_ | RGB speed - | ||
| =+ | RGB speed + | ||
| ← | RGB Colour backward | ||
| → | RGB Colour forward | ||
| PGUP | RGB saturation+ | ||
| PGDN | RGB saturation - | ||
| CTRL-R | APP | In Win system | |
| A | Win system | HiFi Wired Edition | |
| S | OS system | HiFi Wired Edition | |
| Q | KB-M001 BT1 | HiFi Wired Edition | |
| W | KB-M001 BT2 | HiFi Wired Edition | |
| E | KB-M001 BT3 | HiFi Wired Edition | |
| R | 2.4G standard name | HiFi Wired Edition |
4. Instruction of the Battery indicator in Wireless Edition
Charging mode(Connect to USB port for charging):
Red:Charging
Green: Fully charged
Non-charging mode:
Green:Remaining power 70-100%
Orange: Remaining power 50-70%
Yellow: Remaining power 30-50%
Red: Remaining power below 30%
Low battery mode: Battery indicator flashes red, indicating low battery.Please charge the keyboard.
5. How to use the USB decoding function in Hifi edition?
Connect the KB3 Hifi edition to the computer via USB.
The USB decoding function is supported in Windows10 and system above, MAC OS. USB driver is not required.
In Windows computer, you could install the KB3 HiFi keyboard exclusive driver(Download link:Click here). ASIO output mode will be supported after installing the driver and the sampling rate could be up to 384k/24bit,DSD128(DOP),DSD256(Native).
The USB ports support USB output function so it could work as USB docking station.
6. How to switch the input modes in Wireless Edition?
1.Toggle the switch to the corresponding gear to enter the corresponding keyboard mode.(USB/BT/2.4GHz)
2.With no operation for 3 minutes, KB3 will enter the first level standby mode automatically. The RGB lights off and Bluetooth or 2.4G keeps in the connection state. You could click any key to wake up the KB3. The key has output.
3.With no operation for 10 minutes, KB3 will enter the secondary standby mode automatically. Bluetooth or 2.4G connection disconnects. The first time you click any key will wake up the keyboard to reconnect automatically. The key has output after reconnection.
Power comsumption in different status:
Working status: less than 300MA.
First level standby mode: less than 100UA.
Secondary level standby mode: less than 30UA.
Wireless mode switching, pairing, and code matching in wireless mode (BT & 2.4G):
Bluetooth 1 : Fn+Q (short press to switch, long press to pair)
Bluetooth indicator light flashes slowly to indicate reconnection, fast flash when pairing. Bluetooth independent indicator light is always on for 2 seconds after successful connection and then returns to the overall backlight effect.
Under successful connection, the Q light is always on when holding the FN key. After releasing the holding, the Q light will turn off and run following the backlight.
If the pairing fails for 1 minute or the reconnection fails for 20s, the KB3 will enter standby mode.
Bluetooth 2 : Fn+W (short press to switch, long press to pair)
Bluetooth indicator light flashes slowly to indicate reconnection, fast flash when pairing. Bluetooth independent indicator light is always on for 2 seconds after successful connection and then returns to the overall backlight effect.
Under successful connection, the W light is always on when holding the FN key. After releasing the holding, the W light will turn off and run following the backlight.
If the pairing fails for 1 minute or the reconnection fails for 20s, the KB3 will enter standby mode.
Bluetooth 3 : Fn+E (short press to switch, long press to pair)
Bluetooth indicator light flashes slowly to indicate reconnection, fast flash when pairing. Bluetooth independent indicator light is always on for 2 seconds after successful connection and then returns to the overall backlight effect.
Under successful connection, the E light is always on when holding the FN key. After releasing the holding, the E light will turn off and run following the backlight.
If the pairing fails for 1 minute or the reconnection fails for 20s, the KB3 will enter standby mode.
2.4GHz : Fn+R (Long press pairing)
2.4GHz indicator light flashes slowly to indicate reconnection, fast flash when pairing. 2.4GHz independent indicator light is always on for 2 seconds after successful connection and then returns to the overall backlight effect.
Under successful connection, the R light is always on when holding the FN key. After releasing the holding, the R light will turn off and run following the backlight.
If the pairing fails for 1 minute or the reconnection fails for 20s, the KB3 will enter standby mode.
7. What keyboard switches are used?
Gateron G Pro 3.0 yellow switches
8. What accessories are included in KB3?
Keyboard*1, USB-A to Type-C cable (about 1.6m)***1, Keycap puller***1, Warranty card*1, Quick start guide*1
9. How to customize the keys in KB3?
1. You would need to customize the KB3 via this link:
The JOSN file needs to be loaded as shown in the picture. And please choose the corresponding files in the package:
https://fiio-firmware.fiio.net/KB3/FIIO%20KB3-JOSN.rar
2. After loading the JOSN file, reconnect the KB3 and then you could customize the keys.
10. The battery life of KB3 wireless edition
Charging time:
About 10 hours;
Battery life:
1.RGB effect on: 18 hours
2.RGB effect off: 500 hours
3.Standby mode: 2000+hours
11. Dimension,height and weight of KB3
Dimensions:
About 329mm×140mm×43.5mm
Weight:
HiFi Wired edition: about 1060g
Wireless edition: about 1115g
Height:
Front height: about 18.5mm (keycaps not included)
Rear height: about 33mm (keycaps not included)
Rear height with first level of foot support: about 40mm(keycaps not included)
Rear height with secondary height foot support: about 47mm(keycaps not included)
12. What's the standard of the 3.5mm headphone port of KB3 Hifi edition?
CTIA