1. Introduction
This manual provides instructions for the setup, operation, and maintenance of your Haomuren K66-C USB Condenser Microphone. This plug-and-play microphone is designed for high-quality audio capture across various platforms, including PC, Mac, and mobile devices, making it suitable for gaming, streaming, podcasting, and studio recording.
Product demonstration and usage scenarios for the Haomuren K66-C USB Condenser Microphone.
2. What's in the Box
Please check the package contents to ensure all items are present:
- 1 x K66-C USB Condenser Microphone
- 1 x Type-C to USB-A Cable
- 1 x Lightning Adapter
- 1 x Type-C Adapter
- 1 x Foam Windscreen

Image showing the K66P Microphone and its included accessories.
3. Product Features and Controls
The Haomuren K66-C microphone is equipped with several features for optimal audio performance and ease of use:
- Cardioid Pick-up Pattern: Designed to capture sound directly in front of the microphone, reducing background noise. Ideal for gaming and streaming.
- Mute Function: Short press the dedicated button to toggle mute mode. A blue light indicates the microphone is active (Sound ON), while a red light indicates it is muted (Sound OFF).
- Microphone Volume Control: Adjust the input sensitivity of the microphone.
- Monitor Volume Control: Control the volume of the headphone output for real-time audio monitoring.
- Echo Adjustment: Fine-tune the echo effect for vocal enhancements.
- Zero-Latency Headphone Monitor: Connect headphones to the 3.5mm jack for real-time monitoring of your audio without delay.
- Type-C Interface: For direct connection to devices.
- 3.5mm Headphone Jack: For audio monitoring.

Illustration of the microphone's cardioid pick-up pattern.

Close-up view of the microphone's controls and ports, highlighting the zero-latency headphone monitor feature.
4. Setup Guide
4.1. Connecting to PC with USB-A Interface
- Plug the USB-A end of the provided cable into an available USB port on your PC.
- Plug the Type-C end of the cable into the Type-C interface on the bottom of the microphone.
- The computer will automatically recognize the USB device and install the necessary drivers.
Note: If your PC or newest MacBook has a Type-C interface, refer to section 4.2 for connection.
4.2. Connecting to Type-C Device / iPhone / iPad
If your phone, tablet, or PC has a Type-C or Lightning interface, use the appropriate adapter (included) with the USB cable:
- Connect the Type-C end of the provided cable to the microphone.
- Attach the appropriate adapter (Lightning for iPhone/iPad, Type-C for other Type-C devices) to the USB-A end of the cable.
- Plug the adapter into your phone, tablet, or PC's Type-C/Lightning port.
- The device should recognize the microphone automatically.

Connectivity diagram for the microphone with various devices and applications.
4.3. Headphone Monitoring
To monitor your audio in real-time while recording, plug your earphones into the 3.5mm headphone jack located on the microphone.
5. Operating Instructions
Once connected, the Haomuren K66-C microphone operates on a plug-and-play basis. For optimal performance, you may need to adjust system settings as described below:
5.1. Windows Setup
- After plugging the K66 microphone into your computer, the system will automatically recognize it and install drivers.
- Right-click on the sound icon in your system tray and select "Sounds".
- Navigate to the "Recording" tab.
- Select "K66 Audio Device" and click "Set Default".
5.2. macOS Setup
- After plugging the K66 microphone into your Mac, the system will automatically recognize it and install drivers.
- Open "System Preferences".
- Click on "Sound".
- Go to the "Input" tab and select "K66 Audio Device" as your sound input device.
Use the physical knobs on the microphone to adjust microphone volume, monitor volume, and echo effect as needed during your recording or streaming sessions.
6. 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 |

The Haomuren K66-C microphone and its components.
7. User Tips
- ASMR Compatibility: The cardioid pick-up pattern and sensitive condenser element make this microphone suitable for ASMR recordings, capturing subtle sounds with clarity.
- Mobile Device Use: The included Lightning and Type-C adapters ensure broad compatibility with various smartphones and tablets, making it versatile for on-the-go recording or streaming.
- Plug and Play: For most operating systems, the microphone is recognized automatically upon connection, simplifying the setup process.
8. Troubleshooting
- Microphone Not Recognized:
- Ensure the USB cable is securely connected to both the microphone and your device.
- Try connecting to a different USB port on your computer.
- Verify that the correct audio input device ("K66 Audio Device") is selected in your computer's sound settings (refer to Operating Instructions).
- Restart your computer or device.
- No Sound Output from Headphones:
- Ensure headphones are fully plugged into the 3.5mm jack on the microphone.
- Adjust the "Monitor Volume" knob on the microphone.
- Check your device's sound output settings to ensure audio is routed to the microphone's headphone jack if applicable.
- Poor Audio Quality / Background Noise:
- Ensure the microphone is positioned correctly, facing the sound source directly, utilizing its cardioid pattern.
- Adjust the "Microphone Volume" knob to prevent clipping or low input.
- Use the foam windscreen to reduce plosives and breath noise.
- Minimize ambient noise in your recording environment.
9. Maintenance
- Cleaning: Use a soft, dry cloth to clean the microphone's exterior. Avoid using liquid cleaners or solvents.
- Storage: Store the microphone in a dry, dust-free environment when not in use.
- Handling: Handle the microphone with care to avoid dropping or physical impact, which can damage internal components.
- Foam Windscreen: The foam windscreen can be gently washed with mild soap and water, then air-dried completely before re-use.
10. Warranty and Support
This product comes with a 12-month warranty. The warranty will be void if the equipment is altered, misused, mishandled, maladjusted, or suffers excessive wear.
For any questions or support, please contact our after-sale service via email at smt@zealsound.com. We are committed to providing solutions and assistance.
Certifications: CE, FCC, KC
Made In China
A PDF version of the user manual is available for download from the product page.