Introduction
Thank you for choosing the SUDOTACK K03 Wired Handheld Dynamic Vocal Microphone. This microphone is designed to deliver clear and consistent sound for various applications, including karaoke, public speaking, and performances. Its robust construction and user-friendly features ensure reliable operation. This manual provides essential information for proper setup, operation, and maintenance of your microphone.
What's in the Box
- 1x Wired Microphone
- 1x 3.5mm Connector

Image: SUDOTACK K03 Wired Handheld Dynamic Vocal Microphone with attached cable and included 3.5mm adapter.
Key Features
- Premium Quality Sound: Equipped with a cardioid pick-up pattern, this microphone delivers clear vocals and reduces background noise.
- Plug-and-Play Design: Features a sturdy 1/4-inch jack and includes a 3.5mm connector for broad compatibility.
- Extended Cable Length: A 9.84ft cable provides freedom of movement during use.
- Integrated ON/OFF Switch: Allows for convenient audio control.
- Durable All-Metal Construction: Built with premium metal mesh and reinforced internal components for longevity.
- Universal Compatibility: Works with various audio equipment including speakers, mixers, amplifiers, PA systems, and karaoke machines (not compatible with passive speakers and AUX input).

Image: Diagram highlighting the microphone's studio-quality audio capabilities, including its unidirectional moving coil and wide frequency response.

Image: Visual representation of the cardioid pickup pattern, showing how it focuses on the speaker's voice and minimizes ambient sound.

Image: Close-up of the microphone demonstrating its metal construction, emphasizing durability and impact resistance.
Setup
Connecting the Microphone
- Identify the 1/4-inch (6.35mm) microphone input on your audio device (e.g., PA system, amplifier, karaoke machine).
- If your device requires a 3.5mm input, attach the included 3.5mm connector to the 1/4-inch plug of the microphone cable.
- Firmly insert the microphone cable's plug (1/4-inch or 3.5mm with adapter) into the corresponding input on your audio device.

Image: Illustration demonstrating the microphone's wide compatibility with different audio equipment, including mixers and speakers.

Image: The microphone's 9.84ft cable and its 1/4-inch and 3.5mm plugs, highlighting its plug-and-play convenience.
Video: Wired Microphone Connection
Video: A demonstration of connecting the SUDOTACK wired microphone to a karaoke machine, showing the 6.35mm plug and the 3.5mm adapter.
Operating Instructions
Power On/Off
- Locate the ON/OFF switch on the microphone handle.
- Slide the switch to the ON position to activate the microphone.
- Slide the switch to the OFF position when the microphone is not in use to conserve energy and prevent unintended sound capture.

Image: A person demonstrating the easy-to-operate ON/OFF switch and the comfortable grip of the microphone.
Usage Tips
- For optimal sound quality, hold the microphone approximately 2-5 cm (1-2 inches) from your mouth.
- Ensure the microphone's top grille is pointed directly towards the sound source to utilize its cardioid pickup pattern effectively.
- Adjust the volume on your connected audio device to achieve the desired sound level.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the microphone body and grille. Avoid using liquid cleaners or abrasive materials.
- Storage: Store the microphone in a dry, cool place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the microphone or subjecting it to strong impacts to prevent damage to internal components.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| No sound output | Microphone switch is OFF Cable not properly connected Audio device volume is too low | Slide switch to ON Ensure cable is securely plugged into both microphone and audio device Increase volume on your audio device |
| Low volume or weak sound | Microphone too far from mouth Audio device input sensitivity is low | Hold microphone closer to your mouth Adjust input gain/sensitivity on your audio device if available |
| Distorted sound | Audio device volume too high Microphone too close to mouth (clipping) | Reduce volume on your audio device Slightly increase distance from microphone or reduce input gain |
Specifications
| Feature | Detail |
|---|---|
| Model Number | K03 |
| Microphone Form Factor | Handheld |
| Polar Pattern | Unidirectional (Cardioid) |
| Connectivity Technology | Auxiliary |
| Connector Type | 6.35 mm Jack (1/4 inch) with 3.5mm adapter |
| Cable Length | 9.84 ft |
| Material | Metal, Plastic |
| Item Weight | 7.8 ounces |
| Frequency Response | 16 KHz |
| Signal-to-Noise Ratio | 70 dB |
| Compatible Devices | Amplifier, Audio Interface, Karaoke Machine, PA System, Speaker |
Warranty & Support
SUDOTACK products are manufactured with quality and performance in mind. For any product-related inquiries, technical support, or warranty information, please contact SUDOTACK customer support through the retailer's platform or the official SUDOTACK website. Please retain your proof of purchase for warranty claims.




