1. Product Overview
The ONIKUMA GT887 is a versatile four-mode wireless gaming headset designed for an immersive audio experience across multiple platforms. Featuring ultra-long battery life, ultra-low latency, and a rotatable microphone with noise reduction, it's built for extended gaming sessions and clear communication.

This image displays the ONIKUMA GT887 headset in white and black, alongside its compact USB dongle, highlighting its sleek design and wireless capability.

A promotional image featuring the ONIKUMA GT887 Gaming Headset logo and model number.
2. Package Contents
Please check the package for the following items:
- ONIKUMA GT887 Wireless Gaming Headset
- USB 2.4GHz Dongle (USB-A and Type-C compatible)
- USB Type-C Charging Cable
- User Manual (this document)

This image shows the headset, USB dongle, charging cable, and a printed manual, along with a table of detailed product specifications.
3. Setup and Connectivity
The GT887 headset offers four versatile connection modes:
- **2.4G USB Wireless:** For devices with a standard USB-A port.
- **2.4G Type-C Wireless:** For devices with a USB-C port.
- **Bluetooth Wireless:** For general wireless audio.
- **Wired Connection:** Using a 3.5mm audio cable (not explicitly listed in package contents, but implied by 'Wired' mode).

This diagram illustrates the four connection modes (2.4G USB, 2.4G Type-C, Wireless, Wired) and compatible platforms including PS4, PS5, Switch, Windows 10/11, and MacOS.
3.1 Charging the Headset
Before first use, fully charge the headset. Connect the supplied USB Type-C charging cable to the headset's charging port and a compatible USB power source (e.g., computer USB port, USB wall adapter).
- Charging Duration: Approximately 2 hours for a full charge.
- Playback Duration: Up to 60 hours on a full charge.

This image highlights the headset's built-in 950mAh battery, indicating approximately 2 hours of charging duration and up to 60 hours of playback duration.
3.2 Connecting via 2.4G Wireless (USB-A or Type-C Dongle)
- Insert the appropriate end of the 2.4G USB dongle (USB-A or Type-C) into your device (PC, PS4/PS5, Switch dock).
- Power on the headset by long-pressing the Power button.
- Ensure the headset is in 2.4G mode (check the switch on the earcup).
- The headset should automatically connect to the dongle. An indicator light on the headset will confirm connection.
3.3 Connecting via Bluetooth Wireless
- Power on the headset by long-pressing the Power button.
- Ensure the headset is in Wireless (Bluetooth) mode (check the switch on the earcup).
- On your device (smartphone, tablet, PC), go to Bluetooth settings and enable Bluetooth.
- Select "ONIKUMA GT887" from the list of available devices to pair.
- The headset will indicate a successful connection.
3.4 Connecting via Wired Mode
Connect a 3.5mm audio cable (not included) from the headset's audio jack to your device's 3.5mm audio output. The headset will function as a passive wired headset.
4. Operating Instructions
The GT887 headset features intuitive controls located on the earcups. This image provides a detailed view of the buttons on the earcup and their corresponding functions, including power, playback, call management, voice assistant activation, and volume control.
- **Wireless / 2.4G Switch:** Toggles between Bluetooth and 2.4G wireless modes.
- **Power On/Off:** Long press the Power button.
- **Play/Pause/Answer/End Call:** Short press the Play/Pause button.
- **Reject Call (when ringing):** Long press the Play/Pause button.
- **Activate Voice Assistant:** Double press the Play/Pause button.
- **Previous Track:** Short press the Previous Track button.
- **Next Track:** Short press the Next Track button.
- **Volume Control:** Toggle the scroll wheel to adjust volume up or down.
4.1 Microphone Usage
The rotatable microphone offers 120° free rotation and features high-definition noise reduction for clear voice capture.
- Adjust the microphone to your preferred position for optimal voice pickup.
- Rotate the microphone upwards to mute it when not in use.

This image demonstrates the 120° rotation capability of the microphone, emphasizing its flexibility and noise reduction feature.
5. Maintenance and Care
- **Cleaning:** Use a soft, dry cloth to clean the headset. Do not use harsh chemicals or abrasive materials.
- **Storage:** Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- **Battery Care:** To prolong battery life, avoid fully discharging the headset frequently. Charge it regularly, even if not in use for extended periods.
- **Avoid Water:** The headset is not waterproof. Avoid exposure to liquids.
6. Troubleshooting
6.1 No Sound / Low Volume
- Ensure the headset is powered on and properly connected (2.4G dongle, Bluetooth, or wired).
- Check the volume level on both the headset (scroll wheel) and your connected device.
- Verify that the correct audio output device is selected in your device's sound settings.
- If using 2.4G, ensure the dongle is securely inserted and recognized by your device.
- If using Bluetooth, ensure the headset is paired and connected, and try re-pairing.
6.2 Microphone Not Working
- Ensure the microphone is rotated down and not muted.
- Check the microphone input settings on your connected device to ensure the GT887 is selected as the input device.
- Test the microphone in different applications or with another device.
6.3 Connectivity Issues
- **2.4G Wireless:** Ensure the headset is within the 15m transmission range of the dongle. Avoid obstructions.
- **Bluetooth:** Ensure Bluetooth is enabled on your device and the headset is in pairing mode or already paired. Keep the headset close to the device during pairing.
- **Interference:** Move away from other wireless devices (Wi-Fi routers, microwaves) that might cause interference.
6.4 Headset Not Powering On
- Ensure the headset is fully charged. Connect it to a power source and wait a few minutes before attempting to power it on again.
- Try a different charging cable or power adapter.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | ONIKUMA |
| Model | GT887 |
| Wireless Version | V5.4 |
| Rated Power | 5V/600mA |
| Frequency Range | 20Hz-20KHz |
| Transmission Distance | About 15m |
| Playback Time | About 60H |
| Charging Time | About 2H |
| Battery Capacity | 950mAh |
| Sensitivity | 117dB |
| Impedance | 32Ω±15% |
| Charging Interface | TYPE-C USB |
| Material | ABS |
| Weight | 450g |
| Voice Assistant Built-in | Yes |
| With Microphone | Yes |
| Is Wireless | Yes |
| Waterproof | No |
| Volume Control | Yes |
| Vocalism Principle | Balanced Armature |
| Communication | Wireless+Wired |
| Style | Wireless headphone & headset |
| Origin | Mainland China |
8. User Tips
- For the best gaming experience, utilize the 2.4G wireless connection for its ultra-low latency.
- When switching between devices, remember to toggle the Wireless/2.4G switch on the headset to the correct mode.
- To conserve battery, power off the headset when not in use.
- Regularly check for firmware updates (if available from ONIKUMA's official website) to ensure optimal performance and compatibility.
9. Warranty and Support
ONIKUMA products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the official ONIKUMA website or contact their customer support directly. Keep your proof of purchase for warranty claims.





