1. Introduction
Thank you for choosing the Merkury Innovations PHENOM LED Gaming Headset. This manual provides essential information for setting up, operating, and maintaining your headset to ensure optimal performance. This headset is designed for an immersive audio experience with a built-in boom microphone for clear communication.

Image: A gamer wearing the PHENOM LED Gaming Headset, demonstrating its use during gameplay. The headset features green LED lighting on the earcups and an adjustable boom microphone.
2. Setup
2.1 Package Contents
- PHENOM LED Gaming Headset with integrated boom microphone
- Ear Cushions (pre-installed)
2.2 Connecting the Headset
- Locate the 3.5mm audio jack on your gaming console controller (e.g., Xbox controller), PC, or other compatible device.
- Insert the 3.5mm connector from the headset cable firmly into the audio jack.
- Ensure the connection is secure for proper audio and microphone functionality.
2.3 Adjusting for Comfort

Image: A split image showing the adjustable headband mechanism and the soft, cushioned earpads of the headset. The headband is extended, and the earpads show a mesh-like texture.
- Adjustable Headband: Gently slide the earcups up or down along the headband to find a comfortable fit that covers your ears completely. The durable, lightweight exo-frame with an extendable band ensures a universal fit.
- Pro-Cushion Earpads: The plush padding of the earpads is designed for extended comfort during long gaming sessions.
2.4 Positioning the Microphone

Image: The PHENOM LED Gaming Headset with its flexible gooseneck microphone extended and bent into various positions, highlighting its adjustability. The earcup with green LED lighting is also visible.
The headset features a flexible, gooseneck microphone. Position the microphone approximately 1-2 inches from your mouth for optimal voice clarity. The microphone is equipped with noise isolation for sharp, precise communication.
3. Operation
3.1 Audio Control
The headset features an in-line volume control. Use the scroll wheel or slider on the headset cable to adjust the audio volume to your preferred level. Ensure your device's volume is also set appropriately.
3.2 Microphone Mute
A microphone mute switch is located on the in-line control. Slide the switch to mute or unmute your microphone as needed during gameplay or communication.
3.3 LED Lighting
The headset features integrated LED lighting on the earcups. These lights are typically powered when the headset is connected to a powered USB port (if available on your model) or through the 3.5mm jack if it supports power delivery. Refer to your device's manual for specific power output capabilities.

Image: A close-up view of the headset's earcup, highlighting the internal components responsible for surround 40mm sound. The design suggests advanced drivers for immersive audio.
The headset is equipped with advanced, powerful 40mm drivers designed to provide immersive surround sound, enhancing your gaming experience.
4. Maintenance
4.1 Cleaning
- Wipe the headset surfaces with a soft, dry cloth.
- For stubborn dirt, use a slightly damp cloth with mild soap, then wipe dry immediately.
- Do not use harsh chemicals, solvents, or abrasive cleaners.
- Avoid getting moisture into the earcup speakers or microphone.
4.2 Storage
- Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid tangling the cable. Consider wrapping it loosely or using a cable tie.

Image: The PHENOM LED Gaming Headset displayed neatly on a headset stand, showcasing its design and LED lighting. This illustrates proper storage.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No audio from headset |
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| Microphone not working |
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| LED lights not illuminating |
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6. Specifications
| Model Number | MI-H003G-300 |
| Brand | Merkury Innovations |
| Connectivity Technology | Wired (3.5 mm Jack) |
| Wireless Technology Type | Bluetooth (Note: Primary audio connection for gaming is wired via 3.5mm jack.) |
| Headphone Jack | 3.5 mm Jack |
| Control Type | Volume Control, Microphone Mute |
| Driver Size | 40mm (for immersive sound) |
| Microphone | Flexible, Gooseneck with Noise Isolation |
| Material | Plastic |
| UPC | 844702096943 |
7. Warranty & Support
Specific warranty information for the Merkury Innovations PHENOM LED Gaming Headset (Model MI-H003G-300) is not provided in this document. Please refer to the warranty card included with your purchase or visit the official Merkury Innovations website for detailed warranty terms and conditions.
For technical support or further assistance, please contact Merkury Innovations customer service through their official website or the contact information provided in your product packaging.