1. Overview
The FIFINE K669PRO2 is a USB condenser microphone designed for various applications including podcasting, gaming, streaming, voice-overs, and online meetings. It features RGB lighting, a tap-to-mute function, a gain control knob, and a cardioid pickup pattern for clear audio capture. This manual provides instructions for setting up, operating, and maintaining your microphone.
2. Package Contents
Please check the package contents to ensure all items are present:
- FIFINE K669PRO2 USB Condenser Microphone with Pop Filter
- USB-C to USB-A Cable (6.5ft / 2m)
- Tripod Stand
- User's Manual

Figure 2.1: Package Contents. Includes the microphone with pop filter, USB cable, tripod stand, and user manual.
3. Setup Guide
Follow these steps to set up your FIFINE K669PRO2 microphone:
3.1 Physical Assembly
- Attach the Tripod Stand: Screw the microphone onto the included tripod stand. Ensure it is firmly attached and stable on your desk.
- Install the Pop Filter: Attach the pop filter to the microphone's shock mount. This helps reduce plosive sounds for clearer audio.

Figure 3.1: Plug and Play setup. The microphone connects directly to your computer via the provided USB cable.
3.2 Connecting to Your Device
- Connect the USB Cable: Plug the USB-C end of the cable into the microphone and the USB-A end into an available USB port on your computer (PC/Mac) or gaming console (PS4/PS5).
- System Recognition: Your operating system should automatically detect and install the necessary drivers. The microphone is plug-and-play, requiring no additional software installation.
- Select as Input Device:
- Windows: Navigate to Sound Settings > Input and select "FIFINE K669PRO2" as your input device.
- macOS: Navigate to System Preferences > Sound > Input and select "FIFINE K669PRO2".
- PS4/PS5: Navigate to Settings > Devices > Audio Devices and select "FIFINE K669PRO2" as your input device.
4. Operating Instructions
4.1 Gain Control
The microphone features a gain control knob on the front. Rotate the knob to adjust the microphone's input sensitivity. Turn clockwise to increase gain and counter-clockwise to decrease it. Adjust the gain to achieve optimal audio levels without distortion.

Figure 4.1: Front panel controls, including the gain knob for volume adjustment.
4.2 Mute Function
Tap the mute button on the front of the microphone to instantly mute or unmute your audio. The LED indicator will change color to show the mute status (e.g., green for active, red for muted), providing a visual reminder.

Figure 4.2: Front panel controls, highlighting the tap-to-mute button.
4.3 RGB Lighting Control
The microphone features customizable RGB lighting. Use the RGB control key on the back of the microphone to cycle through different lighting modes and colors. There are three lighting modes and over nine color options available.

Figure 4.3: RGB lighting in action, showcasing dynamic solid-color, dynamic multi-color, and static solid color modes.

Figure 4.4: Rear view of the microphone, indicating the RGB control button.
4.4 Cardioid Pickup Pattern
The K669PRO2 utilizes a cardioid polar pattern. This means the microphone primarily picks up sound from the front, reducing unwanted noise from the sides and rear. Position the microphone directly towards the sound source (e.g., your mouth) for optimal voice capture.

Figure 4.5: Cardioid pickup pattern illustration, demonstrating focused sound capture.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the microphone's exterior. Avoid using liquid cleaners or solvents, as they may damage the device.
- Storage: When not in use, store the microphone in a dry, dust-free environment.
- Handling: Handle the microphone with care. Avoid dropping it or subjecting it to strong impacts, which can affect its performance.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output from microphone. |
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| Low volume or weak audio. |
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| Distorted or unclear audio. |
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| RGB lighting not working. |
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7. Specifications
| Model | K669PRO2 |
| Polar Pattern | Unidirectional (Cardioid) |
| Connectivity Technology | USB |
| Connector Type | USB-C (on mic), USB-A (on cable) |
| Compatible Devices | PC, Mac, PS4, PS5 |
| Material | Metal |
| Frequency Response | 20 Hz - 20 kHz |
| Signal-to-Noise Ratio | 70 dB |
| Power Source | Corded Electric (USB Powered) |
| Item Weight | 508 g |
| Included Components | Microphone, USB Cable, Tripod Stand, Pop Filter |
8. Warranty and Support
For warranty information, technical support, or customer service inquiries, please refer to the official FIFINE website or contact their customer support directly. Details can typically be found on the product packaging or the manufacturer's official online channels.
You can visit the FIFINE store for more information: FIFINE Official Store





