1. Introduction
Thank you for choosing the Metronic 480143 Wired TV/HiFi Headphones. These over-ear headphones are designed to provide a comfortable audio experience for your television and HiFi systems. Featuring a generous 6-meter cable and a versatile 3.5mm to 6.35mm jack adapter, they offer flexibility and compatibility with various audio sources.

Image: The Metronic 480143 over-ear headphones in black, showcasing their design.
2. Package Contents
Please ensure all items are present in the package:
- Metronic 480143 Wired TV/HiFi Headphones (with integrated 6-meter cable)
- 3.5mm to 6.35mm Jack Adapter

Image: The included 3.5mm jack and the detachable 6.35mm adapter.
3. Setup
Follow these steps to connect your headphones to an audio source:
- Identify the Audio Output: Locate the audio output port on your TV, HiFi system, or other audio device. This is typically a 3.5mm (headphone) jack or a 6.35mm (quarter-inch) jack.
- Connect the Cable:
- If your device has a 3.5mm jack, plug the 3.5mm connector of the headphone cable directly into the port.
- If your device has a 6.35mm jack, screw the provided 6.35mm adapter onto the 3.5mm connector of the headphone cable, then plug the adapter into the 6.35mm port.
- Adjust Volume: Once connected, adjust the volume on your audio source to a comfortable listening level.

Image: A diagram illustrating the connection of the headphones to an audio input, showing both 3.5mm and 6.35mm jack options.
4. Operating Instructions
These headphones are designed for straightforward use:
- Wearing the Headphones: Place the headphones over your ears, ensuring the earcups fully cover them for optimal sound and comfort. The headband is adjustable to fit various head sizes.
- Volume Control: The headphones do not feature integrated volume control. Adjust the audio volume directly from your connected device (TV, HiFi system, etc.).
- Cable Management: The 6-meter cable provides ample length for movement. It is recommended to fully extend the cable during use to prevent kinks or damage.

Image: The Metronic headphones resting on a sofa, positioned near a television, illustrating a typical usage scenario.

Image: A couple comfortably watching television while wearing headphones, demonstrating shared quiet listening.
5. Maintenance
Proper care will extend the life of your headphones:
- Cleaning: Use a soft, dry cloth to clean the exterior of the headphones. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the headphones in a clean, dry place away from extreme temperatures and direct sunlight. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Handle the 6-meter cable with care. Avoid sharp bends, pulling, or tangling, as this can lead to internal wire damage.
6. Troubleshooting
If you encounter issues, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound |
|
|
| Sound is distorted or unclear |
|
|
| Headphones are uncomfortable | Incorrect fit. | Adjust the headband to find a comfortable fit. Ensure earcups are properly positioned over your ears. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 480143 |
| Cable Length | 6 meters |
| Impedance | 32 Ohms |
| Frequency Response | 20 Hz - 20,000 Hz |
| Sensitivity | 108 dB |
| Connectors | 3.5mm Jack (with included 6.35mm adapter) |
| Ear Placement | Over-ear (Circumaural) |
| Material | Plastic |
| Dimensions (Product) | 19 x 4 x 21 cm |
| Weight (Product) | 300 g |
| Compatible Devices | TV, HiFi equipment |
8. Warranty and Support
This product comes with a 2-year warranty from the date of purchase. For warranty claims or technical support, please contact your retailer or visit the official Metronic website for further assistance.
For more information, you may visit the Metronic Brand Store.