1. Introduction
Thank you for choosing the F998 Multifunction Sound Card. This device is designed to enhance your live streaming, recording, and audio production experience with a wide range of features including adjustable pitch, sound effects, and voice modulation. This manual will guide you through the setup, operation, and maintenance of your new sound card.
2. Package Contents
Please check the package carefully to ensure all items are present:
- 1 x F998 Sound Card
- 1 x USB Charging Cable (Type-A to Type-C)
- 2 x 3.5mm Audio Cables
- 1 x User Manual (this document)

3. Product Overview
The F998 Sound Card features an intuitive layout with various controls and ports for versatile audio management.
3.1 Front Panel Controls

- Knobs: Treble+, Mid+, Bass+, Record+, Monitor+, Mic+, Echo+ (for fine-tuning audio levels and effects).
- Faders: Accompaniment, Monitor (for adjusting volume levels).
- Special Effect Buttons: Elimination, Mute, Internal Play, Denoise, Voice Over, BT (Bluetooth), Karaoke.
- Sound Effect Buttons (Top Row): Primal Sound, Recording Studio, PRO, POP, MC, Change Voice.
- Sound Effect Buttons (Bottom Rows): Cheer, Din, 9277, Kiss, Gunshot, Yell, Laughter, PUBG, Dindin, Awesome, Giggle, Applause, Slash, Mary, Awkward, Guys.
3.2 Rear Panel Ports

- Condenser mic: Input for condenser microphones.
- Headset: Output for headphones or headsets.
- Earphone: Output for earphones.
- Accompaniment: Input for external accompaniment music.
- Phone (x2): Output ports for connecting to mobile phones for live streaming.
- OTG/PC Live: USB port for connecting to a PC or OTG-compatible device for live streaming/recording.
- Charging (5V-1A): USB Type-C port for power and charging.
4. Setup Guide
Follow these steps to set up your F998 Sound Card for use with your devices.
4.1 Powering On/Off and Charging
- Power On: Press and hold the red power button on the top right of the sound card until the indicator lights illuminate.
- Power Off: Press and hold the red power button again until the lights turn off.
- Charging: Connect the USB charging cable to the 'charging 5V-1A' port on the rear of the sound card and to a 5V/1A USB power adapter or computer USB port. The battery indicator will show charging status.
4.2 Connecting to a PC
- Connect one end of the USB charging cable to the 'OTG/PC Live' port on the sound card.
- Connect the other end of the USB cable to an available USB port on your computer.
- Your computer should automatically detect and install the necessary drivers.
- Connect your microphone to the 'Condenser mic' port and your headphones/earphones to the 'Headset' or 'Earphone' port.
4.3 Connecting to Mobile Phones for Live Streaming
- Use the provided 3.5mm audio cables to connect the 'Phone' ports on the sound card to the audio input (headphone jack) of your mobile phone(s).
- If your phone does not have a 3.5mm jack, you may need an appropriate adapter (not included).
- Connect your microphone and headphones/earphones as described in section 4.2.
- For accompaniment music from another device, connect it to the 'Accompaniment' port using a 3.5mm audio cable.
5. Operating Instructions
The F998 Sound Card offers a variety of functions to customize your audio output.
5.1 Audio Adjustment
- Treble, Mid, Bass: Use the respective knobs to adjust the high, middle, and low frequencies of your voice or music.
- Record: Adjust the recording volume level.
- Monitor: Adjust the monitoring volume level for your headphones/earphones.
- Mic: Control the microphone input volume.
- Echo: Adjust the echo effect level for your voice.
- Accompaniment Fader: Control the volume of the background music input.
- Monitor Fader: Control the overall monitor output volume.
5.2 Special Effects and Modes
- Elimination: One-key function to effectively remove the singing voice from accompaniment tracks, making the sound clearer for live broadcasts.
- Mute: Mutes all audio output.
- Internal Play: Activates internal playback mode.
- Denoise: Reduces background noise for clearer audio.
- Voice Over: Allows you to speak over background music.
- BT (Bluetooth): Activates Bluetooth pairing for wireless accompaniment input.
- Karaoke: Optimizes settings for karaoke performance.
- Primal Sound: Restores your original voice without effects.
- Recording Studio: Activates a mode optimized for studio-quality recording.
- PRO, POP, MC: Preset sound modes for professional, pop music, and MC (Master of Ceremonies) styles.
- Change Voice: Accesses various electronic tone and voice modulation effects.
5.3 Atmosphere Sound Effects
The F998 Sound Card includes a grid of buttons that trigger various atmosphere sound effects to enhance your live broadcasts and recordings. Simply press the desired button to activate the effect.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | F998 |
| Type | Mixers, DJ Controllers, Effects Processors |
| Brand Name | 722 SEVEN HUNDRED AND TWENTY-TWO |
| Origin | Mainland China |
| Certification | CE |
| Dimensions (L x W x H) | Approx. 19 cm (7.48 in) x 12 cm (4.72 in) x 4.5 cm (1.77 in) |
| Weight | 0.443 kg |
| Charging Input | 5V-1A (USB Type-C) |
| Connectivity | USB (OTG/PC Live), 3.5mm Audio Jacks, Bluetooth |

7. Troubleshooting
If you encounter any issues with your F998 Sound Card, please refer to the following common problems and solutions:
- No Sound Output:
- Ensure the sound card is powered on and fully charged.
- Check all cable connections (microphone, headphones, phone/PC).
- Verify that volume knobs and faders are not set to minimum or muted.
- On your computer, ensure the F998 Sound Card is selected as the default audio input/output device.
- Microphone Not Working:
- Ensure the microphone is securely connected to the 'Condenser mic' port.
- Adjust the 'Mic' volume knob.
- Test with another microphone if possible.
- Bluetooth Connection Issues:
- Ensure the 'BT' button is activated on the sound card.
- Make sure your mobile device's Bluetooth is on and discoverable.
- Try unpairing and re-pairing the device.
- Sound Distortion:
- Reduce input volumes (Mic, Accompaniment) to prevent clipping.
- Check for loose cable connections.
8. Maintenance
To ensure the longevity and optimal performance of your F998 Sound Card, please follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the sound card. Do not use liquid cleaners or abrasive materials.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping or subjecting the device to strong impacts.
- Charging: Use only the specified 5V/1A charger to prevent damage to the battery.
9. Warranty and Support
For any warranty claims or technical support, please contact the seller or the manufacturer directly. Keep your purchase receipt as proof of purchase.
10. User Tips
- Experiment with different sound effects and pitch adjustments to find your unique style for live broadcasts.
- Utilize the 'Denoise' function in noisy environments to improve audio clarity.
- For optimal recording quality, ensure your microphone is positioned correctly and input levels are not peaking.