Taiahiro Transparent Mechanical Keyboard User Manual
Model: BK920
1. Setup
1.1 Unboxing and Initial Inspection
Carefully remove all components from the packaging. Ensure all items listed below are present and undamaged.
- Mechanical Keyboard
- Keycap & Switch Puller
- USB Cable
- Replace Switch (x2)

Figure 1: Keyboard and included accessories.
1.2 Charging the Keyboard
The keyboard is equipped with a built-in 4000mAh battery. For optimal performance, fully charge the keyboard before first use. Connect the provided USB-C cable to the keyboard's USB-C port and the other end to a power source (e.g., computer USB port, wall adapter).

Figure 2: Battery level can be checked by pressing Fn+B.
1.3 Connectivity Options
The keyboard supports three connection modes: Bluetooth 5.0, 2.4GHz wireless, and USB-C wired. It can effortlessly switch between up to 5 devices.

Figure 3: Three modes of connectivity for versatile use.
1.3.1 Bluetooth Connection
To connect via Bluetooth:
- Ensure the keyboard is powered on.
- Switch the mode to Wireless (check LED indicators).
- Press and hold Fn + Q/W/E for 5 seconds to enter pairing mode. The corresponding Q/W/E LEDs will flash rapidly.
- On your device (PC, Android, iOS, PS4, Xbox), go to Bluetooth settings.
- Find and select "BT-920keyboard" or similar from the list of available devices.
- Confirm pairing if prompted. The LED will stop flashing once connected.
Video 1: Bluetooth Connection Guide for Taiahiro Transparent Wireless Keyboard.
1.3.2 2.4GHz Wireless Connection
Insert the 2.4GHz USB dongle (located in the keyboard's back compartment) into an available USB port on your device. The keyboard should automatically connect.

Figure 4: USB dongle stored in the keyboard's back compartment.
1.3.3 USB-C Wired Connection
Connect the provided USB-C cable directly from the keyboard to your device's USB port. The keyboard will function in wired mode and charge simultaneously.
2. Operating Instructions
2.1 Power On/Off
To power on the keyboard, single click the power button located on the back. To power off, long press the same button for 3 seconds.
2.2 RGB Backlight Customization
The keyboard features dynamic RGB backlighting with 16.8 million colors and 15 lighting modes.

Figure 5: The keyboard features customizable RGB backlighting.
- Change Lighting Mode: Press Fn + | (vertical bar/backslash key) to cycle through 15 different lighting modes (e.g., wave, ripple, reactive).
- Change Lighting Color: Press Fn + Tab to cycle through various static colors.
- Adjust Brightness: Use Fn + Up Arrow to increase brightness and Fn + Down Arrow to decrease brightness.
- Turn Lights On/Off: Press Fn + Backspace to toggle the backlight on or off.
Video 2: Demonstration of RGB lighting modes on the Transparent Mechanical Keyboard.
2.3 Multimedia Knob Functions
The rotary knob provides convenient control over multimedia functions.

Figure 6: The multimedia knob offers quick control.
- Volume Control: Rotate the knob clockwise to increase volume, counter-clockwise to decrease volume.
- Mute/Unmute: Press the knob once to mute or unmute audio.
- Switch Modes: Long-press the knob for 3 seconds to seamlessly switch between two modes, allowing control over lighting brightness/modes or audio volume/mute.
2.4 Hot-Swappable Switches
The keyboard is equipped with premium Linear Switches and supports 3-pin and 5-pin hot-swappable switches, allowing for easy customization without soldering.

Figure 7: Easily swap out keycaps and switches.

Figure 8: Gasket structure with built-in sound-absorbing layers for quiet typing.
3. Maintenance
3.1 Cleaning Your Keyboard
To maintain the transparent aesthetic and ensure longevity, regular cleaning is recommended.
- Use the provided keycap puller to carefully remove keycaps for thorough cleaning.
- Wipe the keycaps and keyboard surface with a soft, damp cloth. Avoid abrasive materials or harsh chemicals.
- Use compressed air to remove dust and debris from between the keys.
4. Troubleshooting
4.1 Common Issues and Solutions
| Issue | Possible Cause | Solution |
|---|---|---|
| Keyboard not connecting via Bluetooth/2.4GHz | Not in pairing mode, low battery, interference. | Ensure keyboard is in pairing mode (Fn + Q/W/E). Recharge battery. Move closer to device or away from interference sources. |
| Backlight not working or dim | Backlight off, low brightness, low battery. | Press Fn + Backspace to toggle. Increase brightness with Fn + Up Arrow. Recharge battery. |
| Keys not responding | Loose switch, connectivity issue. | Ensure switches are properly seated. Re-establish connection. Try wired mode. |
| Multimedia knob not responding | Incorrect mode, software glitch. | Long-press knob to switch modes. Restart keyboard. |
5. Specifications
| Feature | Detail |
|---|---|
| Model Number | BK920 |
| Connectivity Technology | 2.4Ghz, Bluetooth 5.0, USB-C |
| Keyboard Description | Full Transparent Clear RGB Backlit Wireless Mechanical Gaming Keyboard with Multimedia Knob |
| Number of Keys | 80 |
| Switch Type | Linear Ice Crystal Mechanical Switches |
| Hot-Swappable | Yes (Supports 3-pin and 5-pin switches) |
| Battery Capacity | 4000mAh |
| Keyboard Backlighting | RGB (16.8 Million Colors, 15 Modes) |
| Compatible Devices | Laptop, PC, Tablet, Smartphone, MAC |
| Item Weight | 2.64 pounds |
| Package Dimensions | 15.35 x 8.15 x 3.11 inches |
| Manufacturer | Taiahiro Tech |
| Country of Origin | China |
6. Warranty and Support
Taiahiro products are designed for durability and performance. For warranty information, technical support, or any inquiries regarding your Transparent Mechanical Keyboard, please refer to the contact details provided on the product packaging or visit the official Taiahiro website. Please retain your proof of purchase for warranty claims.





