Introduction
The ONIKUMA B5 Gradient 3-Mode Wireless Gaming Headset offers versatile connectivity options including 2.4G wireless, Bluetooth 5.3, and a wired connection. Designed with a unique 'cute pet space capsule' aesthetic and RGB lighting, it provides high-fidelity stereo sound and features an HD microphone for clear communication. This manual provides instructions for setup, operation, maintenance, and troubleshooting to ensure optimal use of your headset.
Video: Animated product showcase of the ONIKUMA B5 headphones, highlighting design and features.
Package Contents
Please check the package for the following items:
- ONIKUMA B5 Gaming Headset
- 2.4G USB Wireless Dongle
- Charging Cable
- Detachable Audio Cable
- User Manual

Image: Contents of the ONIKUMA B5 headphone package, including the headphones, 2.4G USB dongle, charging cable, audio cable, and user manual.
Specifications
| Feature | Specification |
|---|---|
| Model | B5 |
| Material | ABS, Plastic |
| Communication | Wireless (2.4G, Bluetooth), Wired |
| Bluetooth Version | 5.3 |
| Max Wireless Range | <10m |
| Battery Capacity | 850mAh |
| Battery Life (up to) | 55 hours |
| Charging Time (approx.) | 1.5 hours |
| Charging Method | Cable |
| Driver Diameter | 50mm |
| Vocalism Principle | Dynamic |
| Frequency Response Range | 20 - 20000Hz |
| Sensitivity | 110dB |
| Impedance Range | up to 32 Ω (32Ω) |
| Total Harmonic Distortion | 3% |
| Headphone Pads Material | Memory Foam |
| Magnet Type | Ferrite |
| Microphone | Yes (HD Mic with ENC Low Latency) |
| Active Noise-Cancellation | No |
| Volume Control | Yes |
| Control Button | Yes |
| RGB Lighting | Yes |
| Waterproof | No |
| Support APP | No |
| Voice Assistant Built-in | No |
| NFC Technology | No |
Product Overview
Familiarize yourself with the various parts and controls of your ONIKUMA B5 headset.

Image: Front view of the ONIKUMA B5 headphones, showcasing the overall design.

Image: Close-up of the ONIKUMA B5 headphones, showcasing the cute pet space capsule design and RGB lighting on the earcups.
Controls and Ports:
- Power Button: Used to turn the headset on/off.
- Volume Control: Adjusts the audio output level.
- RGB Light Switch: Controls the headset's RGB lighting effects.
- Mode Switch: Allows switching between 2.4G wireless, Bluetooth, and wired modes.
- Charging Port: For connecting the charging cable.
- Audio Jack: For wired connection using the detachable audio cable.
- HD Microphone: For voice communication, featuring ENC low latency.

Image: Headphone controls including RGB light switch, power on/off button, and volume adjustment. Also highlights ENC low latency for the microphone.
Comfort Features:
- Adjustable Headband: Extends up to 30mm for a customized fit.
- Memory Foam Earcups: Soft and breathable for extended wear.
- Adjustable Earcups: Can be rotated up to 90 degrees for optimal comfort.

Image: Detailed view of the adjustable headband and soft memory foam earcups for comfortable wear.

Image: Close-up showing the lightweight headband, 30mm adjustable range, and 90-degree adjustable earcups.
Setup
1. Charging the Headset
- Connect the provided charging cable to the charging port on the headset.
- Connect the other end of the charging cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light will show the charging status. A full charge takes approximately 1.5 hours.
2. Power On/Off
- To power on, press and hold the Power Button until the indicator light turns on.
- To power off, press and hold the Power Button until the indicator light turns off.
3. Connecting via 2.4G Wireless
- Insert the 2.4G USB wireless dongle into an available USB port on your computer or game console.
- Power on the ONIKUMA B5 headset.
- Switch the headset to 2.4G wireless mode using the mode switch. The headset should automatically connect to the dongle.
- Ensure your device's audio output is set to the 'ONIKUMA B5' headset.

Image: Headphones connected via 2.4GHz wireless dongle to a laptop, emphasizing fast and stable connection for gaming.
4. Connecting via Bluetooth 5.3
- Power on the ONIKUMA B5 headset and switch it to Bluetooth mode using the mode switch. The indicator light will flash, indicating it's in pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select 'ONIKUMA B5' from the list of devices to pair.
- Once paired, the indicator light on the headset will stop flashing and remain solid.

Image: A person wearing the ONIKUMA B5 headphones, demonstrating comfortable fit and Bluetooth 5.3 connectivity.
5. Connecting via Wired Mode
- Connect one end of the detachable audio cable to the audio jack on the headset.
- Connect the other end of the audio cable to the 3.5mm audio port on your device.
- The headset will automatically switch to wired mode. No battery power is required for wired use.

Image: Diagram illustrating the three connection modes: 2.4G wireless, Bluetooth, and wired, with compatible devices.
Operating Instructions
1. Switching Between Modes
Use the dedicated mode switch on the headset to seamlessly transition between 2.4G wireless, Bluetooth, and wired connections based on your device and preference.
2. Volume Adjustment
Use the volume control buttons/wheel on the headset to increase or decrease the audio volume.
3. Microphone Usage
The integrated HD microphone provides clear voice input. Ensure the microphone is positioned correctly for optimal voice pickup. The headset features ENC (Environmental Noise Cancellation) for the microphone, reducing background noise during calls or in-game communication.
4. RGB Lighting Control
Press the RGB Light Switch button to cycle through different lighting modes or to turn the RGB lighting on/off.
5. Device Compatibility
The ONIKUMA B5 headset is widely compatible with various devices, including computers, mobile phones, tablets, and game consoles, thanks to its 3-mode connectivity.

Image: Headphones shown with various compatible devices: laptop, game console, smartphone, tablet.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the headset. Do not use abrasive cleaners or solvents.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Moisture: The headset is not waterproof. Avoid exposure to water or excessive moisture.
- Cable Care: Handle cables gently to prevent damage.
Troubleshooting
No Sound
- Ensure the headset is powered on and fully charged.
- Check the volume level on both the headset and your connected device.
- Verify that the correct audio output device is selected on your computer or console.
- If using 2.4G wireless, ensure the USB dongle is properly inserted and the headset is in 2.4G mode.
- If using Bluetooth, ensure the headset is paired and connected to your device.
- If using wired mode, ensure the audio cable is securely connected to both the headset and your device.
Cannot Pair Bluetooth
- Ensure the headset is in Bluetooth pairing mode (indicator light flashing).
- Make sure your device's Bluetooth is enabled and discoverable.
- Move the headset closer to your device and away from other wireless interference.
- Try turning off and on both the headset and your device's Bluetooth.
Microphone Not Working
- Ensure the microphone is not muted on the headset or your device.
- Check that the headset is selected as the input device in your device's sound settings.
- If using a wired connection, ensure the audio cable is fully inserted.
Short Battery Life
- Ensure the headset is fully charged before use.
- High volume levels and continuous RGB lighting can reduce battery life.
User Tips
- For the best audio experience, ensure the earcups fully cover your ears to maximize sound isolation.
- Regularly charge your headset to maintain optimal battery performance, especially before long gaming sessions.
- Experiment with the different connection modes (2.4G, Bluetooth, Wired) to find the most stable and convenient option for your specific device and usage scenario.
- Adjust the headband and earcup rotation for a comfortable fit during extended use.
Warranty and Support
For warranty information and technical support, please refer to the official ONIKUMA website or contact your retailer. Keep your proof of purchase for any warranty claims.