1. Overview
The Havit HV-139d headset is designed for versatile use with both computers and mobile phones, offering clear stereo sound and a boom microphone for communication. Its lightweight design ensures comfort during extended use.
Key Features:
- 3.5mm double plug for audio and microphone.
- Full-size, over-ear design for immersive sound.
- Wired connectivity for stable audio transmission.
- Adjustable headband for comfortable fit.
- Lightweight construction.
2. Safety Information
- Do not expose the headset to extreme temperatures, humidity, or corrosive substances.
- Avoid dropping or subjecting the headset to strong impacts.
- Do not attempt to disassemble or modify the headset. This may void the warranty and cause damage.
- Clean the headset with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Prolonged listening at high volume levels can cause hearing damage. Adjust volume to a comfortable level.
3. Package Contents
Please check the package for the following items:
- Havit HV-139d Headset with attached cable.
Figure 3.1: Product packaging showing the Havit HV-139d headset box.
4. Product Components
Figure 4.1: Front view of the Havit HV-139d headset, showing the earcups, headband, and adjustable boom microphone.
Figure 4.2: Top view of the headset, highlighting the adjustable headband mechanism.
Figure 4.3: The headset with its dual 3.5mm audio and microphone plugs, designed for separate input/output ports.
Component Identification:
- Earcups: Padded for comfort, housing the audio drivers.
- Headband: Adjustable for a secure and comfortable fit.
- Boom Microphone: Flexible and adjustable for optimal voice pickup.
- 3.5mm Audio Plug (Green): Connects for audio output.
- 3.5mm Microphone Plug (Pink): Connects for microphone input.
5. Setup Instructions
Follow these steps to set up your Havit HV-139d headset:
- Identify Ports: Locate the 3.5mm audio output port (often green or with a headphone icon) and the 3.5mm microphone input port (often pink or with a microphone icon) on your computer or device.
- Connect Audio: Insert the green 3.5mm audio plug from the headset into the audio output port of your device.
- Connect Microphone: Insert the pink 3.5mm microphone plug from the headset into the microphone input port of your device.
- Adjust Headband: Place the headset on your head and adjust the headband until the earcups comfortably cover your ears.
- Position Microphone: Bend the boom microphone to position it near your mouth for clear voice pickup.
- Configure Audio Settings (if necessary): On your computer, navigate to your sound settings (e.g., Control Panel > Sound on Windows, System Preferences > Sound on macOS) to ensure the headset is selected as the default playback and recording device.
6. Operating Instructions
Audio Playback:
- Once connected, audio from your device will automatically play through the headset.
- Adjust the volume using your device's system volume controls.
Microphone Usage:
- The boom microphone is active when connected to the microphone input port.
- Ensure the microphone is positioned correctly near your mouth for optimal clarity during calls or recordings.
- Some applications may require you to select the Havit headset microphone as the input device within their settings.
7. Maintenance
- Cleaning: Use a soft, dry, lint-free cloth to wipe down the earcups and headband. Do not use harsh chemicals, cleaning solvents, or strong detergents.
- Storage: When not in use, store the headset in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tangling the cable.
- Cable Care: Do not pull on the cable to disconnect the headset. Always grasp the plug firmly. Avoid bending or crimping the cable excessively.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headset. | Incorrect port connection; device volume too low; headset not selected as default playback device. |
|
| Microphone not working. | Incorrect port connection; microphone muted; headset not selected as default recording device. |
|
| Sound quality is poor or distorted. | Loose connection; audio source issue; high volume causing distortion. |
|
9. Specifications
| Feature | Specification |
|---|---|
| Product Type | Headphones with Microphone |
| Connectivity Technology | Wired |
| Plug Type | Dual 3.5mm Jack (Audio & Mic) |
| Headphones Form Factor | Full size, On Ear |
| Sound Output Mode | Stereo |
| Frequency Response | 20-20000 Hz |
| Sensitivity | 102 dB |
| Impedance | 32 Ohm |
| Microphone Type | Boom |
| Diaphragm | 40 mm |
| Cable Length | 1.8 m |
| Body Material | ABS plastic |
| Color | Black |
| Model Name | HV 139d |
10. Warranty and Support
Havit products are manufactured to high quality standards. For information regarding warranty coverage, please refer to the warranty card included with your purchase or visit the official Havit website.
For technical support, troubleshooting assistance, or inquiries about your product, please contact Havit customer service through their official channels. Contact information can typically be found on the product packaging or the Havit brand website.
