1. Introduction
Thank you for choosing the KINGONE K12 Wireless Lavalier Microphone. This compact and versatile microphone system is designed for high-quality audio recording with smartphones, tablets, and other compatible devices. It features a magnetic clip design, one-click noise reduction, real-time monitoring, and broad compatibility for various recording scenarios.
2. Package Contents
Please check the box for the following items:
- 2x Microphone Transmitters
- 1x Receiver
- 1x Charging Cable
- 1x User Manual
- 2x Furry Windshields
- 1x USB-C Monitor Earphones
- 1x Type-C to Lightning Adapter

Image: All components included in the KINGONE K12 Wireless Lavalier Microphone package.
3. Product Overview
The KINGONE K12 system includes two compact transmitters (microphones) and one receiver. The transmitters feature a magnetic clip for easy attachment and a one-click button for noise reduction. The receiver connects directly to your device via USB-C and includes a Type-C to Lightning adapter for broader compatibility.

Image: Overview of the KINGONE K12 wireless microphone system, showing two transmitters, one receiver, and the charging case.
4. Setup Instructions
4.1 Connecting the Receiver
- Plug the receiver directly into the USB-C port of your smartphone, tablet, or laptop.
- If using an iPhone with a Lightning port, attach the provided Type-C to Lightning adapter to the receiver before plugging it into your iPhone.
4.2 Activating OTG Function (for Android Devices)
For some Android models, you may need to manually activate the OTG (On-The-Go) function in your phone's settings for the microphone to work correctly. If the receiver indicator does not light up after plugging it in, follow these steps:
- Go to your phone's Settings.
- Search for "OTG" in the settings search bar.
- Locate and enable the "OTG connection" function.
Video: Tutorial on how to activate the OTG function, manual pairing, and correct charging for the microphone.
4.3 Powering On the Microphones
Press and hold the power button on each microphone transmitter until the indicator light turns green. A solid green light on both the transmitter and receiver indicates a successful connection.
4.4 Manual Pairing (If Needed)
If the indicator light on the receiver continues to flash blue after plugging it in, manual pairing may be required:
- Ensure the transmitter is powered off.
- Press and hold the power button on the transmitter for 6 seconds until the blue light flashes rapidly, indicating pairing mode.
- Once successfully paired, the blue light on the transmitter will remain solid.
5. Operating Instructions
5.1 Wearing the Microphone
The microphone transmitters feature an innovative magnetic clip design, allowing them to be easily attached to clothing, hats, or jackets. This ensures a secure fit without affecting movement.

Image: The magnetic clip design of the KINGONE K12 microphone, showing how it attaches securely to clothing.
Video: Demonstration of the magnetic neck microphone, highlighting its ease of use and secure attachment.
5.2 One-Click Noise Reduction
Activate or deactivate noise cancellation with a single click of the yellow button on the transmitter. This advanced technology effectively filters background noise, ensuring clear audio quality for interviews, vlogs, and video recordings.

Image: Illustrates the intelligent DSP noise cancellation feature, showing a reduction of -38dB with a single click of the yellow button.
5.3 Real-time Monitoring
Connect the included USB-C earphones to the receiver's audio jack to monitor your recording in real-time. This feature helps reduce post-production time and improves efficiency by allowing you to hear your audio live.

Image: Shows the real-time monitoring function, allowing users to listen to their audio synchronously while recording.
5.4 Wide Compatibility
The KINGONE K12 is designed for versatility, connecting easily with various devices via USB-C. It is compatible with Android smartphones, iPhones (using the adapter), iPads, and laptops.
Video: Demonstrates the wireless microphone's compatibility with cameras, iPhones, and Android devices.
6. Charging and Battery Life
The KINGONE K12 comes with a high-capacity charging case. Once fully charged, the case can recharge both transmitters up to 3 times, providing a total standby time of 30 hours for the 2 transmitters and 1 receiver (2TX and 1RX).
- Each transmitter offers up to 5 hours of use without noise cancellation.
- The charging case has a capacity of 300mAh.
- Charging time for the case is approximately 2 hours.

Image: The rechargeable digital battery case, highlighting 30-hour ultra-long usage time and the ability to recharge microphones anytime, anywhere.
Video: Shows the 3-in-1 wireless microphone with a 2-pack LED display, demonstrating the charging case and its features.
7. Troubleshooting
7.1 Microphone Not Connecting to Phone
If the microphone does not connect to your phone, especially an Android device, ensure the OTG function is activated in your phone's settings. Refer to section 4.2 for detailed steps.
7.2 Indicator Light Flashing Red and Green
If the microphone's indicator light flashes red and green, it means the connection has not been established correctly. Please check the receiver connection and ensure the microphone is powered on and in pairing mode if necessary (refer to section 4.4).
7.3 Charging Cable Direction
When using the magnetic charging cable, ensure it is inserted in the correct direction. Do not force the cable if it doesn't fit easily, as this may damage the device.
8. Specifications
| Feature | Specification |
|---|---|
| Model | K12AU |
| Microphone Form Factor | Lavalier |
| Connectivity Technology | Plug and Play |
| Connector Type | USB Type-C |
| Compatible Devices | Smartphone, PC, Laptop, iPad |
| Special Features | Magnetic Clip, Real-time Monitoring, Rechargeable while using |
| Battery Life (Transmitter) | Up to 5 hours (without noise cancellation) |
| Total Battery Life (with Charging Case) | Up to 30 hours (2TX + 1RX) |
| Charging Case Capacity | 300mAh |
| Polar Pattern | Omnidirectional |
| Number of Channels | 2 |
| Product Weight | 1 Grams |
| Product Dimensions | 1 x 1 x 1 cm |
9. Warranty and Support
KINGONE products come with a standard manufacturer's warranty. For specific warranty details, please refer to the warranty card included in your package or visit the official KINGONE website.
Our dedicated customer service team is available to assist you with any issues or questions you may have regarding your KINGONE K12 Wireless Lavalier Microphone. Please do not hesitate to contact us for support.
Contact information can typically be found on the product packaging or the official KINGONE website.




