KiiBoom Phantom 81 V2
KiiBoom Phantom 81 V2 Transparent Mechanical Gaming Keyboard User Manual
Model: Phantom 81 V2
1. Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your KiiBoom Phantom 81 V2 Transparent Mechanical Gaming Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Figure 1: KiiBoom Phantom 81 V2 Pink Transparent Mechanical Gaming Keyboard. This image shows the full keyboard layout with clear keycaps and a pink base, highlighting its transparent design.
2. Product Overview
The KiiBoom Phantom 81 V2 is a 75% layout mechanical keyboard designed for gaming and everyday use. It features a transparent acrylic frame, hot-swappable PCB, south-facing RGB LEDs, and versatile triple-mode connectivity.
2.1 Key Features
- Futuristic Design: Crystal-clear acrylic frame with gasket mount and PC mounting plate for durability.
- Hot-Swappable PCB: Compatible with 3-pin or 5-pin mechanical switches for easy customization.
- South-facing RGB LEDs: Enhanced lighting experience with reduced glare, customizable colors and brightness.
- Triple Modes Connectivity: Supports Type-C Wired, Bluetooth 5.0, and 2.4GHz wireless modes.
- Long Battery Life: Equipped with a 4000mAh rechargeable battery (V2 version).
- Cross-Platform Compatibility: Fully compatible with Mac and Windows operating systems.

Figure 2: Overview of KiiBoom Phantom 81 V2 features, including 75% layout, tri-mode connectivity, hot-swappable switches, gasket-mounted design, PC plate, plate-mounted stabilizers, south-facing RGB, and acrylic design.
3. What's in the Box
- KiiBoom Phantom 81 V2 Keyboard
- USB Cable (Type-C)
- Keycap Puller
- Switch Puller
- Extra Switches (2)
- Cleaning Cloth
- User Manual (this document)
Video 1: Unboxing for KiiBoom Phantom 81 V2 Pink Keyboard. This video demonstrates the unboxing experience, showing the keyboard, USB cable, keycap puller, and other accessories included in the package.
4. Setup Guide
4.1 Initial Charging
Before first use, it is recommended to fully charge the keyboard. Connect the provided USB Type-C cable to the keyboard's charging port and the other end to a USB power source (e.g., computer USB port, wall adapter). The RGB lighting may indicate charging status.
4.2 Connectivity Modes
The Phantom 81 V2 supports three connectivity modes:
- USB-C Wired Mode: Connect the keyboard directly to your computer using the provided USB-C cable. The keyboard will automatically switch to wired mode.
- Bluetooth Mode:
- Toggle the switch on the keyboard to Bluetooth mode.
- Press Fn + 1/2/3 to select a Bluetooth profile (e.g., Fn+1 for BT1). The indicator light will flash, indicating pairing mode.
- On your device (PC, Mac, Tablet, Smartphone), search for Bluetooth devices and select "KiiBoom Phantom 81".
- Once connected, the indicator light will become solid. You can pair up to three Bluetooth devices.
- 2.4GHz Wireless Mode:
- Locate the 2.4GHz USB receiver (often stored near the charging port or within the packaging).
- Plug the receiver into an available USB port on your computer.
- Toggle the switch on the keyboard to 2.4GHz mode.
- Press Fn + 4. The keyboard should automatically connect to the receiver.

Figure 3: Illustration of the triple connectivity modes: Bluetooth (Fn+1/2/3), 2.4G Wireless (Fn+4), and Type C Wired (Fn+5).

Figure 4: The KiiBoom Phantom 81 V2 is compatible with MacOS, Windows, and Android operating systems.
5. Operating Instructions
5.1 RGB Backlighting Control
The Phantom 81 V2 features customizable RGB backlighting. Use the following key combinations to adjust lighting effects:
- Fn + \ |: Toggle Backlight Mode
- Fn + DEL: Toggle Backlight Direction
- Fn + ↑: Increase Brightness
- Fn + ↓: Decrease Brightness
- Fn + →: Increase Speed
- Fn + ←: Decrease Speed

Figure 5: Controls for South-Facing RGB Backlights, showing key combinations for mode, direction, brightness, and speed adjustments.
5.2 Surrounding Sidelights Control
The keyboard also features customizable surrounding sidelights:
- Fn + P: Toggle Sidelight Mode
- Fn + B: Toggle Sidelight Color
- Fn + X: Increase Sidelight Brightness
- Fn + V: Decrease Sidelight Brightness
- Fn + C: Increase Sidelight Speed

Figure 6: Controls for Surrounding Sidelights, detailing key combinations for mode, color, brightness, and speed adjustments.
5.3 Multifunctional Knob
The knob located on the top right of the keyboard provides quick access to various functions:
- Rotate clockwise to increase volume or brightness.
- Rotate counter-clockwise to decrease volume or brightness.
- Press to mute/unmute audio or toggle lighting effects.
- Customizable functions may be available via software.

Figure 7: The multifunctional knob on the KiiBoom Phantom 81 V2 controls volume, mute, and offers customizable functions.
5.4 Battery Status Check
To check the current battery level, press Fn + Backspace. The keyboard's RGB lighting will indicate the battery status:
- Red: Below 20%
- Yellow: 20% - 50%
- Green: Above 50%

Figure 8: Visual representation of battery level indicators on the KiiBoom Phantom 81 V2 keyboard.
6. Maintenance
6.1 Cleaning the Keyboard
To maintain the transparent aesthetic and functionality of your keyboard:
- Use the provided cleaning cloth to gently wipe the surface of the keyboard and keycaps.
- For deeper cleaning, you may remove keycaps using the keycap puller.
- Use compressed air to remove dust and debris from between the keys.
- Avoid using harsh chemicals or abrasive materials that could damage the acrylic.
6.2 Hot-Swapping Switches
The hot-swappable design allows for easy replacement of switches without soldering:
- Carefully remove the keycap using the keycap puller.
- Use the switch puller to gently grip the switch and pull it straight up.
- Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight to avoid bending.
- Press the new switch firmly into place until it clicks.
- Replace the keycap.

Figure 9: The hot-swappable PCB plate of the KiiBoom Phantom 81 V2, compatible with 3-pin or 5-pin mechanical switches, allowing for easy customization and maintenance.
Video 2: Typing on Phantom 81 V2 Pink Crystal Keyboard. This video demonstrates the sound and feel of typing on the keyboard, showcasing the clear keycaps and RGB lighting.
Video 3: KiiBOOM x Strawberryjam1986 Strawberry Jello Switch Set. This video shows the process of installing new switches into the keyboard, highlighting the hot-swappable feature.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding (Wired) | Loose cable connection, faulty USB port. | Ensure USB-C cable is securely connected. Try a different USB port or cable. |
| Keyboard not connecting (Bluetooth/2.4GHz) | Incorrect mode selected, low battery, interference, not paired. |
|
| RGB lights not working or dim | Lights turned off, brightness too low, low battery. |
|
| Specific key not working | Faulty switch, debris under keycap. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model | Phantom 81 V2 |
| Layout | 75% |
| Number of Keys | 82 |
| Connectivity | USB-C Wired, Bluetooth 5.0, 2.4GHz Wireless |
| Battery Capacity | 4000mAh |
| Backlighting | South-facing RGB |
| Hot-Swappable | Yes (3-pin/5-pin mechanical switches) |
| Mounting Style | Gasket Mount |
| Plate Material | PC (Polycarbonate) |
| Case Material | Transparent Acrylic |
| Compatible OS | Windows, macOS, Android |
| Dimensions | 17.18 x 7.68 x 2.84 inches |
| Item Weight | 4.74 pounds |
9. Warranty and Support
9.1 Warranty Information
KiiBoom products typically come with a manufacturer's warranty covering defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official KiiBoom website for detailed warranty terms and conditions.
9.2 Customer Support
For technical assistance, troubleshooting, or product inquiries, please contact KiiBoom customer support through their official website or the contact information provided in your product packaging.
Official KiiBoom Store: KiiBoom Amazon Store
For additional resources, you may also refer to the official User Manual PDF: User Manual (PDF)
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