Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your Poly EP 320 Stereo USB-C Headset. Designed for clear audio communication, this wired headset features a comfortable over-ear design and an integrated microphone, making it ideal for various communication needs.
Product Overview

Figure 1: The Poly EP 320 Stereo USB-C Headset. This image displays the headset's full profile, highlighting its single earcup with a soft cushion, the flexible microphone boom extending from the earcup, and the adjustable headband. The USB-C cable is visible extending from the earcup.
Setup
Follow these steps to set up your Poly EP 320 Stereo USB-C Headset:
- Connect the Headset: Locate an available USB-C port on your computer, laptop, or compatible device. Insert the USB-C connector of the headset firmly into the port.
- Operating System Recognition: Your operating system (Windows, macOS, Linux, etc.) should automatically detect and install the necessary drivers for the headset. This process may take a few moments.
- Select as Default Device:
- Windows: Go to "Sound Settings" (right-click the speaker icon in the taskbar) and ensure the Poly EP 320 is selected as the default playback and recording device.
- macOS: Go to "System Preferences" > "Sound" and select the Poly EP 320 for both input and output.
- Adjust Fit: Place the headset on your head and adjust the headband for a comfortable and secure fit. Position the earcup over your ear.
- Position Microphone: Bend the microphone boom to position the microphone approximately 1-2 inches (2.5-5 cm) from your mouth for optimal voice clarity.
Operating Instructions
Once connected and configured, your Poly EP 320 headset is ready for use.
- Audio Playback: The headset will automatically play audio from your connected device. Adjust volume using your device's system volume controls or within the application you are using.
- Microphone Usage: The integrated microphone is active when selected as the input device. Ensure the microphone is properly positioned for clear voice capture.
- Call Management: For communication applications (e.g., Zoom, Microsoft Teams, Skype), call controls are typically managed within the software interface. The headset provides audio input and output.
Maintenance
Proper care will extend the life of your headset:
- Cleaning: Use a soft, dry cloth to wipe down the headset. For ear cushions, a slightly damp cloth with mild soap can be used, but ensure they are completely dry before use. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, store the headset in a clean, dry place away from extreme temperatures and direct sunlight. Avoid tangling the cable.
- Cable Care: Do not pull on the cable to disconnect the headset. Always grasp the USB-C connector. Avoid sharp bends or kinks in the cable.
Troubleshooting
If you encounter issues with your headset, try the following solutions:
| Problem | Solution |
|---|---|
| No sound from headset |
|
| Microphone not working |
|
| Audio quality is poor |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | POLY |
| Model Number | 767F9AA |
| ASIN | B0CZ2MSV4X |
| UPC | 197029428226 |
| Color | Black |
| Headset Type | Over-Ear (Supra-Auricular) |
| Connectivity Technology | Wired (USB-C) |
| Special Features | Microphone included |
| Item Dimensions (L x W x H) | 17 x 15 x 5 centimeters |
| Item Weight | 200 Grams |
Warranty Information
This Poly product is covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Poly website. Keep your purchase receipt as proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact Poly customer support through their official website or the contact information provided in your product packaging. When contacting support, please have your product model number (767F9AA) and ASIN (B0CZ2MSV4X) ready.





