1. Introduction
Thank you for choosing the Onikuma GT838 Three Mode Wireless Gaming Headset. This headset is designed to provide a versatile and immersive audio experience for gaming and multimedia, featuring multiple connection options, vibrant RGB lighting, and a comfortable design. Please read this manual carefully to ensure proper use and maintenance of your new headset.
2. Package Contents
Please check the package for the following items:
- Onikuma GT838 Gaming Headset
- USB-C 2.4G Wireless Dongle
- USB Charging Cable
- 3.5mm Audio Cable (for wired connection)
- User Manual (this document)
3. Product Overview
Familiarize yourself with the various parts and controls of your GT838 headset:
- RGB Luminous Cat Ears: Customizable lighting effects.
- Earcups: Padded for comfort, featuring RGB lighting.
- Adjustable Headband: For a secure and comfortable fit.
- Built-in Noise-Canceling Microphone: For clear communication.
- Volume Control: Adjust audio output.
- Mode Switch: Toggle between 2.4G, Bluetooth, and Wired modes.
- Charging Port: USB-C for power input.
- 3.5mm Audio Jack: For wired connection.
4. Setup and Connection
4.1 Initial Charging
Before first use, fully charge your headset. Connect the USB charging cable to the headset's USB-C port and a power source (e.g., computer USB port, USB wall adapter). Charging typically takes about 2 hours for a full charge, providing approximately 10 hours of play time.
4.2 Connecting Your Headset
The Onikuma GT838 supports three connection modes: 2.4G Wireless, Bluetooth 5.3, and Wired.
2.4G Wireless Mode (for PS4/5, PC, Notebook)
- Plug the USB-C 2.4G wireless dongle into an available USB-C port on your device. If your device only has USB-A ports, you may need a USB-C to USB-A adapter (not included).
- Turn on the headset. It should automatically connect to the dongle.
- Ensure the headset is selected as the audio output and input device in your device's sound settings.
Bluetooth 5.3 Mode (for iPad, Phone, Switch, Notebook)
- Turn on the headset and switch it to Bluetooth mode. The RGB lights may flash to indicate pairing mode.
- On your device, go to Bluetooth settings and search for available devices.
- Select "Onikuma GT838" from the list to pair.
- Once connected, the RGB lights may change to a steady pattern.
Wired Mode (for PS4/5, PC, Notebook)
- Connect one end of the 3.5mm audio cable to the headset's 3.5mm audio jack.
- Connect the other end of the 3.5mm audio cable to your device's audio output jack.
- The headset will function as a wired headset, bypassing wireless connectivity.
5. Operating Instructions
5.1 Power On/Off
Locate the power button on the headset. Press and hold to power on or off. An indicator light will confirm the status.
5.2 Volume Control
Use the dedicated volume controls on the headset to adjust the audio output level.
5.3 Microphone Usage
The built-in noise-canceling microphone is automatically active in wireless modes. Ensure it is enabled in your device's sound settings for communication. In wired mode, microphone functionality depends on the 3.5mm cable and device compatibility.
5.4 RGB Lighting Effects
The headset features cool RGB lighting effects on the earcups and cat ears, offering about 16.8 million colors. Specific controls for RGB lighting (e.g., on/off, mode change) may be integrated with other buttons or automatically cycle.
6. Maintenance
- 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.
7. Troubleshooting
- No Sound:
- Check if the headset is powered on and charged.
- Ensure the correct connection mode (2.4G, Bluetooth, or Wired) is selected.
- Verify the headset is selected as the default audio output device on your computer or console.
- Adjust the volume on both the headset and your device.
- Microphone Not Working:
- Ensure the microphone is not muted on the headset or your device.
- Check if the headset is selected as the default input device in your device's sound settings.
- Connection Issues:
- For 2.4G wireless, ensure the dongle is securely plugged in and within range.
- For Bluetooth, ensure the headset is in pairing mode and your device's Bluetooth is on. Try unpairing and re-pairing.
- Reduce interference by moving away from other wireless devices.
- RGB Lights Not Working:
- Ensure the headset is powered on.
- Check if there's a dedicated button or combination to activate/change RGB modes.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | ONIKUMA |
| Model | GT838 |
| Style | Over-ear Gaming Headset |
| Communication | Wired, Bluetooth, 2.4G Wireless |
| Wireless Type | Bluetooth 5.3, 2.4G Dongle |
| Working Distance | 15m |
| Vocalism Principle | Dynamic |
| Driver Size | 50mm |
| Speaker Impedance | 32Ω±15% |
| Sensitivity | 117dB |
| Frequency Response | 20Hz-20KHz |
| Microphone | Built-in, Noise-canceling |
| Volume Control | Yes |
| Waterproof | No |
| Battery Capacity | 1000mAh |
| Play Time | Approx. 10 hours |
| Charging Time | Approx. 2 hours |
| Input | 5V / 600mA |
| Product Size | 17 x 20 x 5 cm |
| Product Weight | 0.59 kg |
| Material | Plastic |
| Certification | CE, FCC, RoHS |
| Special Features | RGB Luminous Cat Ears, Ultra-low latency (15ms in 2.4G mode) |
9. User Tips
- For optimal gaming performance, especially for competitive play, utilize the 2.4G wireless mode for its ultra-low latency (approx. 15ms).
- When switching between devices, remember to change the headset's mode accordingly (2.4G, Bluetooth, or Wired) to ensure proper connection.
- To maximize battery life, consider turning off the RGB lighting when not needed, as lighting effects consume power.
10. Warranty and Support
Your Onikuma GT838 headset comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or visit the official ONIKUMA website. Keep your proof of purchase for warranty claims.
