Introduction
The Haomuren K66S-C Professional USB Condenser Microphone Kit is designed to provide high-quality audio for various applications including streaming, podcasting, voiceovers, recording, and gaming. This kit features a cardioid polar pattern for focused sound capture, an auto noise-canceling DSP chip, and convenient on-board controls for optimal sound adjustment. The included adjustable boom arm stand offers flexible positioning for your setup.
Package Contents
Please check the box for the following items:
- Condenser Microphone (1)
- Boom Arm Stand (1)
- Table Clamp (1)
- Foam Windscreen (1)
- Type-C to USB-A Cable (1)

Setup
Boom Arm Stand Installation
- Fix the desk mount clamp on the edge of your desk. Tighten the screw to secure it.

Figure 2: Secure the desk mount clamp to a stable surface. - Insert the lower end of the boom arm stand into the desk mounting clamp.

Figure 3: Place the boom arm into the clamp's slot. - Tighten the microphone onto the threaded end of the adjustable arm stand.

Figure 4: Screw the microphone onto the boom arm's threaded connector. - Tighten the knob on the microphone mount to secure its position.

Figure 5: Adjust and lock the microphone angle using the side knobs.
Microphone Connection
- Connect to PC with USB Interface: Plug the USB-A end of the cable into your PC, and the Type-C end into the microphone. The computer will automatically recognize the USB device and install a driver.

Figure 6: Connect the Type-C cable to the microphone and the USB-A end to your computer. - Monitor with Headphones (Optional): Plug your earphones into the 3.5mm headphone jack on the microphone if you need to monitor your audio in real-time while recording. This provides zero-latency monitoring.

Figure 7: Use the 3.5mm jack for direct audio monitoring.
Operating Instructions
Microphone Button Functions

- Mute Button: Short press to toggle mute mode. A blue light indicates sound is ON, while a red light indicates sound is OFF (muted).

Figure 9: Mute button status indicators. - Mic Gain Knob: Adjusts the microphone input sensitivity.
- Monitor Knob: Controls the volume of the headphone output for real-time monitoring.
- Echo Knob: Adjusts the echo effect applied to your voice.
Computer Setup (Windows)
- Plug the K66S-C microphone into your computer. The computer will automatically recognize the USB device and install a driver.
- Right-click on the sound icon in the system tray and select "Sounds".
- Click the "Recording" tab and select "K66 Audio Device". Click "Set Default".
Computer Setup (macOS)
- Plug the K66S-C microphone into your computer. The computer will automatically recognize the USB device and install a driver.
- Open "System Preferences" and click on "Sound".
- Click the "Input" tab and select "K66 Audio Device" as the device for sound input.
Usage Scenarios
The Haomuren K66S-C microphone is versatile and suitable for:
- Singing
- Live Streaming
- Recording (e.g., podcasts, voiceovers)
- Gaming

Maintenance
- Keep the microphone and accessories clean and dry.
- Avoid exposing the microphone to extreme temperatures or humidity.
- Use the foam windscreen to protect the microphone from dust and moisture, and to reduce plosive sounds.
- Handle the boom arm stand carefully to prevent damage to its springs and joints.
Troubleshooting
- No Sound Output:
- Ensure the USB cable is securely connected to both the microphone and the computer.
- Check computer sound settings to confirm "K66 Audio Device" is selected as the input device.
- Verify the microphone's mute button is not active (blue light should be on).
- Adjust the Mic Gain knob to an appropriate level.
- Poor Sound Quality / Noise:
- Ensure the microphone is positioned correctly, facing the sound source.
- Check for environmental noise and try to minimize it.
- The microphone features an auto noise-canceling DSP chip, but extreme noise may still affect quality.
- Ensure the foam windscreen is properly installed.
- Headphone Monitoring Issues:
- Ensure headphones are fully plugged into the 3.5mm jack.
- Adjust the Monitor Knob on the microphone.
Specifications
| Feature | Specification |
|---|---|
| Microphone Diameter | 16MM |
| Polar Pattern | Cardioid |
| Computer Transmission Method | USB2.0 |
| Power Supply | External power supply 5V |
| Frequency Response | 80Hz-20KHz |
| Sampling Rate | 46KHz |
| Sensitivity | 45dB ± 3dB |
| Signal-to-noise ratio | 85dB |
| Dynamic Range | 88dB |
| Equivalent Noise Level | 66dB |
| USB Cable Length | 70.9 inches |

Warranty and Support
The product comes with a 12-month warranty. The warranty will become void if the equipment is altered, misused, mishandled, maladjusted, or suffers excessive wear. If you have any questions or require support, please feel free to contact our after-sale service via email at smt@zealsound.com. We are committed to finding the best solution for you.
A detailed user manual is also available in PDF format for download: User Manual (PDF).
Certifications: CE, FCC, KC
Made in China
User Tips
- Plug & Play: The microphone is generally plug-and-play for Windows and macOS, making setup straightforward.
- Sound Quality: Users report clear audio, suitable for streaming and recording.
- Boom Arm: While the boom arm is adjustable and functional, some users note it might feel less robust than higher-end options. Ensure it's securely tightened for stability.
- Monitoring: Utilize the 3.5mm headphone jack for zero-latency monitoring to hear your audio in real-time.
- Compatibility: The microphone is primarily designed for PC use via USB. Compatibility with gaming consoles (PS5, PS4, Xbox Series S) or mobile phones is not officially stated and may require adapters or specific software/drivers not included.