1. Product Overview
The FIFINE K688CT+H8 is a complete podcasting and recording solution, featuring a high-quality dynamic microphone, a robust boom arm, and comfortable studio monitoring headphones. This kit is designed to provide clear, professional-grade audio for various applications, including podcasting, streaming, voice-overs, and music recording.

Image 1.1: Complete FIFINE K688CT+H8 Podcast Microphone Kit, including the dynamic microphone, boom arm, and studio headphones.
Key Features:
- Authentic Sound Integrity: The dynamic microphone delivers natural sound reproduction with a high SPL of 130dB, ensuring original and consistent recordings without distortion.
- Cardioid Polar Pattern: Effectively reduces ambient noise, focusing on the sound source directly in front of the microphone for clear vocal capture.
- Intuitive Controls: Features a tap-to-mute button for instant muting and a gain knob for precise audio level adjustments.
- Headphone Monitoring: Integrated headphone jack and volume knob allow for real-time audio monitoring, optimizing recording effectiveness.
- Comfortable Studio Headphones: The included H8 headphones feature a supportive adjustable headband and soft padded ear cushions, weighing 265g for extended comfortable wear during long sessions.
- Robust Boom Arm: Crafted from durable metal, the boom arm ensures secure and stable microphone placement, minimizing collisions and vibrations for smooth audio quality.
- Versatile Connectivity: Supports both XLR and USB connections for compatibility with various setups, including PCs, mixers, and gaming consoles (PS4/PS5).
2. Safety Instructions
Please read and understand these safety instructions before using the product to prevent damage or injury.
- Do not expose the microphone or headphones to water or excessive moisture.
- Avoid dropping or subjecting the equipment to strong impacts.
- Do not attempt to disassemble or modify the product. Repairs should only be performed by qualified personnel.
- Keep the product away from heat sources and direct sunlight.
- Ensure all cables are connected securely to prevent accidental disconnections or short circuits.
- When adjusting the boom arm, ensure it is securely clamped to a stable surface to prevent tipping.
- Avoid listening at excessively high volumes with the headphones for prolonged periods to prevent hearing damage.
3. Package Contents
Verify that all items listed below are present in your package:
- FIFINE K688 Dynamic Microphone
- Studio Monitoring Headphones (H8)
- Adjustable Boom Arm with Desk Clamp
- USB-C to USB-A Cable
- XLR Cable (Note: XLR cable may not be included in all bundles. Please check product packaging.)
- 3.5mm Audio Cable for Headphones
- 6.35mm (1/4 inch) Adapter for Headphones
- User Manual (this document)
4. Setup Guide
Follow these steps to set up your FIFINE Podcast Microphone Kit:
4.1. Boom Arm Assembly and Mounting
- Attach the desk clamp to a sturdy surface, such as a desk or table edge. Tighten the clamp securely.
- Insert the base of the boom arm into the hole on the desk clamp. Ensure it is fully seated and stable.
- Adjust the boom arm's position and angle as needed. The arm offers 180° vertical and 135° horizontal adjustability for optimal microphone placement.

Image 4.1: The boom arm offers flexible adjustment, extending up to 13 inches vertically and horizontally from its pivot points.
4.2. Microphone Attachment
- Screw the FIFINE K688 microphone onto the threaded end of the boom arm. Ensure it is firmly attached but do not overtighten.
- Position the microphone so that the front (where the FIFINE logo is visible) faces the sound source.
4.3. Headphone Connection
- Connect the 3.5mm audio cable to the headphone jack on the FIFINE K688 microphone.
- If your mixer or audio interface requires a 6.35mm (1/4 inch) connection, use the provided adapter.
- Plug the other end of the headphone cable into the H8 studio headphones.

Image 4.2: The H8 headphones feature a closed-back circumaural design for immersive monitoring and sound isolation.
4.4. Connecting to Your Device (PC/Mixer)
The K688 microphone offers both USB and XLR connectivity.
USB Connection (Plug and Play):
- Connect the USB-C end of the provided USB cable to the USB port on the K688 microphone.
- Connect the USB-A end of the cable to an available USB port on your computer (desktop or laptop) or gaming console (PS4/PS5).
- The device should be automatically recognized by your operating system. Select "FIFINE K688" as your input device in your system's sound settings and recording software.
XLR Connection (Requires Audio Interface/Mixer):
- Connect a standard XLR cable (not always included) to the XLR port on the K688 microphone.
- Connect the other end of the XLR cable to an XLR input on your audio interface or mixer.
- Ensure your audio interface/mixer is properly connected to your computer and configured.


Image 4.3: The K688 microphone features both XLR and USB interfaces for versatile connectivity.
5. Operation
Understanding the controls on your FIFINE K688 microphone and H8 headphones is essential for optimal performance.
5.1. Microphone Controls (K688)

Image 5.1: Detailed view of the microphone's gain and monitoring volume controls.
- Tap-to-Mute Button: Located on the top of the microphone. A single tap will instantly mute or unmute the microphone. The LED indicator will change color to show mute status (e.g., green for active, red for muted).
- Mic Gain Knob: Adjusts the input sensitivity of the microphone. Turn clockwise to increase gain (make your voice louder), and counter-clockwise to decrease it. Adjust this to achieve a strong signal without clipping.
- Monitoring Volume Control: Adjusts the volume of the audio output to your connected headphones. This does not affect the microphone's input level.

Image 5.2: User-friendly functions like tap-to-mute and headphone monitoring are easily accessible.
5.2. Headphone Usage (H8)
The H8 headphones are designed for comfortable and accurate audio monitoring.
- Wearing: Adjust the headband to fit comfortably over your head. The earcups should fully enclose your ears for optimal sound isolation and comfort.
- Volume: Control the headphone volume using the monitoring volume knob on the K688 microphone or your connected audio device.

Image 5.3: The H8 headphones feature a lightweight design (265g) with soft filler headband and padded earmuffs for comfort during long sessions.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your FIFINE kit.
- Cleaning: Use a soft, dry cloth to wipe down the microphone, headphones, and boom arm. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use, store the kit in a clean, dry place away from extreme temperatures and humidity.
- Cable Care: Avoid sharp bends or kinks in the cables. Store them neatly to prevent tangling and damage.
- Microphone Grille: Periodically check the microphone grille for dust or debris. Use a soft brush if necessary to gently clean it.
7. Troubleshooting
If you encounter issues with your FIFINE Podcast Microphone Kit, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from microphone | Microphone muted; Incorrect input device selected; Loose cable connection; Gain too low. | Tap the mute button to unmute; Check system sound settings and recording software to ensure K688 is selected as input; Reconnect USB/XLR cable; Increase Mic Gain knob. |
| No sound from headphones | Headphones not connected; Monitoring volume too low; Incorrect output device selected. | Ensure headphones are fully plugged into the K688; Increase Monitoring Volume knob; Check system sound settings to ensure K688 (or connected interface) is selected as output. |
| Distorted audio | Mic Gain too high (clipping); Microphone too close to sound source. | Decrease Mic Gain knob; Move microphone slightly further away from the sound source. |
| Background noise/hum | Environmental noise; Ground loop (XLR); USB port interference. | Ensure recording environment is quiet; Try a different USB port; If using XLR, ensure proper grounding or use a ground loop isolator. |
| Boom arm unstable | Desk clamp not tightened; Arm joints loose. | Retighten the desk clamp; Check and tighten any adjustable joints on the boom arm. |
8. Specifications
Technical specifications for the FIFINE K688CT+H8 Podcast Microphone Kit:
| Component | Specification |
|---|---|
| Microphone Type | Dynamic |
| Polar Pattern | Cardioid |
| Frequency Response | 50Hz - 16kHz |
| Sensitivity | -58dB (±3dB) |
| Max SPL | 130dB |
| Signal-to-Noise Ratio (SNR) | >80dB |
| Output Connection | USB-C, XLR |
| Headphone Driver Size | 50mm Dynamic Driver |
| Headphone Impedance | 32 ohms |
| Headphone Weight | 265g (9.4oz) |
| Boom Arm Material | Durable Metal |
| ASIN | B0DPFYH9LQ |
| Date First Available | December 2, 2024 |

Image 8.1: The K688 microphone features a cardioid polar pattern and a Signal-to-Noise Ratio (SNR) greater than 80dB.

Image 8.2: The H8 headphones are equipped with 50mm dynamic drivers for balanced sound quality and an impedance of 32 ohms, ideal for monitoring.
9. Warranty and Support
FIFINE products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or visit the official FIFINE website. Keep your purchase receipt as proof of purchase for warranty claims.





