1. Product Overview
The FIFINE USB Microphone K668 is a plug-and-play condenser microphone designed for various audio applications, including home studio recording, online communication, and gaming. It offers a simple setup process and clear audio capture.

Figure 1: FIFINE USB Microphone K668 with its included tripod stand.

Figure 2: Detailed dimensions of the FIFINE K668 USB microphone.

Figure 3: Included components: FIFINE K668 USB microphone, USB cable, tripod stand, and foam windscreen.
2. Setup and Installation
2.1 Connecting the Microphone
The FIFINE K668 microphone is designed for plug-and-play functionality. Follow these steps to connect it to your computer:
- Attach the microphone to the included tripod stand by screwing it onto the mount.
- Connect the USB cable from the microphone to an available USB port on your computer.
- The computer should automatically detect and install the necessary drivers.
Video 1: This video demonstrates the unboxing and initial setup of the FIFINE K668 USB microphone, including attaching the tripod and foam cap.
2.2 Computer Setup (Windows)
After connecting the microphone, you may need to select it as your default input device and adjust its levels:
- Right-click the speaker icon in your system tray (bottom-right corner of the screen).
- Select "Open Sound Settings."
- Under the "Input" section, choose "Microphone (USB PnP Audio Device)" from the dropdown menu.
- Click "Device properties" and navigate to the "Levels" tab to adjust the microphone volume. It is often recommended to set the microphone level between 80-90 to avoid background noise and distortion.
Video 2: This video guides you through setting up the FIFINE K668 USB microphone on a Windows 10 computer, including selecting the input device and adjusting microphone levels.
2.3 Computer Setup (Mac)
For Mac users, follow these steps to configure your microphone:
- Go to "System Preferences" and click on "Sound."
- Select the "Input" tab.
- Choose "Microphone (USB PnP Audio Device)" from the list of devices.
- Adjust the input volume slider to your desired level.
3. Operation
3.1 Basic Use
The FIFINE K668 features an omni-directional pickup pattern, which means it captures sound equally from all directions. This is beneficial for capturing ambient sound or multiple speakers around the microphone. It also includes noise cancellation features to help isolate the main sound source.

Figure 4: A user utilizing the FIFINE K668 USB microphone for a video call or recording session.
3.2 Recommended Applications
This microphone is suitable for a variety of uses:
- Home studio recording (vocals, speech, voice-overs)
- Online communication (Skype, Discord, Google Voice Search)
- Gaming
- Podcasting
- YouTube recordings

Figure 5: The FIFINE K668 USB microphone positioned on a desk next to a laptop, ready for use.

Figure 6: The FIFINE K668 USB microphone connected to a laptop, demonstrating its use with recording software.
4. Maintenance
To ensure the longevity and optimal performance of your FIFINE K668 microphone, consider the following maintenance tips:
- Keep the microphone clean by gently wiping it with a soft, dry cloth.
- Avoid exposing the microphone to extreme temperatures, humidity, or direct sunlight.
- Store the microphone in its original packaging or a protective case when not in use to prevent dust accumulation and physical damage.
- Ensure the foam windscreen is properly fitted to protect the microphone capsule from dust and moisture.
5. Troubleshooting
5.1 Microphone Not Detected
- Check USB Connection: Ensure the USB cable is securely plugged into both the microphone and a functioning USB port on your computer. Try a different USB port.
- Restart Computer: Sometimes a simple restart can resolve detection issues.
- Verify Sound Settings: Confirm that "Microphone (USB PnP Audio Device)" is selected as the input device in your computer's sound settings (refer to Section 2.2 or 2.3).
5.2 Poor Sound Quality
- Adjust Microphone Levels: If the sound is too quiet or distorted, adjust the input volume in your computer's sound settings. Avoid setting it to 100% as this can introduce background noise. A level between 80-90 is often optimal.
- Microphone Placement: Ensure the microphone is positioned at an appropriate distance from your mouth (e.g., 6-12 inches) to capture clear audio without excessive plosives or breath sounds.
- Background Noise: Minimize ambient noise in your recording environment. The microphone's omni-directional pattern will pick up sounds from all directions.
- Foam Windscreen: Ensure the foam windscreen is correctly installed to reduce plosive sounds and protect against minor air disturbances.
5.3 Damaged Tripod Stand
The tripod stand included with the microphone has plastic components that can be susceptible to damage if excessive force is applied or if it is handled roughly. If a leg or the central housing of the tripod is broken, it may affect the stability and adjustability of the microphone.
- Handle with Care: Avoid applying undue pressure on the tripod legs or using them for leverage when adjusting the microphone angle.
- Replacement: If the tripod is damaged, consider replacing it with a more robust stand if frequent adjustments or portability are required.
Video 3: This video shows an unboxing of the FIFINE K668 USB microphone where the tripod stand was found to be damaged, highlighting a potential issue with the plastic components.
6. Specifications
| Feature | Specification |
|---|---|
| Model | K668 |
| Microphone Form Factor | Gooseneck (with included tripod) |
| Connectivity Technology | USB |
| Polar Pattern | Omnidirectional |
| Frequency Response | 50Hz-16KHz |
| Audio Sensitivity | 30 Decibels |
| Signal-to-Noise Ratio | 80 dB |
| Power Source | USB |
| Material | Metal |
| Item Weight | 400 Grams (14.1 ounces) |
| Product Dimensions (LxWxH) | 4.88 x 2.6 x 7.28 inches |
| Compatible Devices | Laptop, PC, PlayStation (Incompatible with Xbox and Phones) |
7. Warranty and Support
FIFINE is committed to customer satisfaction. For warranty information or technical support, please refer to the user guide included in your product packaging or visit the official FIFINE website. The product typically comes with a standard manufacturer's warranty covering defects in materials and workmanship from the date of original retail purchase.
For specific inquiries or issues, please contact FIFINE customer support directly through their official channels.





