1. Product Overview
The EPOS C1 USB-A Stereo headset is engineered for professionals requiring reliable communication in various work environments. This plug-and-play wired solution offers clear audio, a noise-canceling microphone, and comfortable wear for extended periods.
Key Features:
- Universal Compatibility: Connects easily to PCs and laptops via USB-A.
- Designed for Long-Term Comfort: Features a padded headband and lightweight on-ear structure.
- Clear Communication: Premium noise-canceling microphone minimizes background sound.
- Instant Audio Control: Inline volume and mute buttons with an LED mute indicator.
- Professional-Grade Experience: Chromebook certified, optimized for UC platforms, and compatible with EPOS Connect for personalization.

Image: EPOS C1 USB-A Headset highlighting its lightweight and comfortable design, noise-canceling microphone, inline volume and mute controls, and USB-A connector.
2. What's in the Box
- EPOS C1 USB-A Headset
- Ear Cushions
- User Manual

Image: The EPOS C1 USB-A Headset and its attached USB-A connector, illustrating the main components included in the product packaging.
3. Setup
3.1 Connecting the Headset
- Locate an available USB-A port on your computer (PC or laptop).
- Plug the USB-A connector of the EPOS C1 headset into the USB-A port.
- The headset is plug-and-play and should be automatically recognized by your operating system (Windows, macOS, Chrome OS).
- Verify that the headset is selected as the default audio input and output device in your computer's sound settings.

Image: The EPOS C1 USB-A Headset illustrating its plug-and-play functionality and compatibility with various operating systems including Windows, macOS, and Chrome OS.
4. Operating Instructions
4.1 Wearing the Headset
- Adjust the headband for a comfortable fit on your head. The headset is designed for long-term comfort with its lightweight and padded structure.
- Position the microphone boom arm so that the microphone is close to your mouth for optimal voice pickup.
4.2 Using the Microphone
The EPOS C1 features a noise-canceling microphone to ensure your voice is clear and background noise is minimized. For best performance, ensure the microphone is positioned correctly.
4.3 Inline Controls
The headset includes an inline control unit for easy management of calls and audio settings:
- Volume Up/Down: Use the (+) and (-) buttons to adjust the listening volume.
- Mute/Unmute: Press the microphone button to mute or unmute your microphone. An LED indicator will show the mute status.
- Call Answer/End: Use the call button to answer or end calls on compatible platforms.
4.4 EPOS Connect Software
For advanced personalization and firmware updates, download and install the EPOS Connect software from the official EPOS website. This software allows you to control audio settings and hearing protection features.
5. Maintenance
5.1 Cleaning
- Wipe the headset with a soft, dry cloth.
- Do not use liquid cleaners or solvents.
- Regularly check and clean the ear cushions for hygiene and comfort.
5.2 Storage
When not in use, store the headset in a clean, dry place away from extreme temperatures and direct sunlight. Avoid tangling the cable to prevent damage.
6. Troubleshooting
6.1 No Sound or Poor Sound Quality
- Ensure the USB-A connector is fully inserted into the port.
- Check your computer's sound settings to confirm the EPOS C1 is selected as the default playback device.
- Adjust the volume using the inline controls and your computer's volume settings.
- Test the headset on a different USB port or computer to rule out port-specific issues.
6.2 Microphone Not Working
- Ensure the microphone is not muted via the inline control or your software application. Check the LED mute indicator.
- Verify that the EPOS C1 is selected as the default recording device in your computer's sound settings.
- Confirm the microphone boom arm is positioned correctly near your mouth.
- Update the headset firmware using EPOS Connect software.
7. Specifications
| Model Name | C1 USB-A |
| Connectivity Technology | Wired (USB-A) |
| Ear Placement | On Ear |
| Noise Control | Noise-Canceling Microphone |
| Control Type | Volume Control, Mute Button |
| Compatible Devices | Computers, Laptops, Smartphones, Tablets, Desktops |
| Item Weight | 83 Grams (2.93 ounces) |
| Material | Plastic |
| Special Features | Integrated Remote Control, Lightweight, Microphone Included, Volume Control |
8. Warranty and Support
EPOS products are designed for durability and performance. For specific warranty information and technical support, please refer to the warranty card included with your product or visit the official EPOS support website. Keep your proof of purchase for warranty claims.
9. Product Videos
9.1 Meet the C1: Crystal-Clear Calls Anywhere
Video: A brief overview of the EPOS C1 headset, highlighting its ability to deliver crystal-clear calls in any environment, showcasing its primary function for professional communication.
9.2 EPOS C1 USB-A Business Headset Overview
Video: A detailed presentation of the EPOS C1 USB-A Business Headset, covering its features, design, and benefits for users in business and remote work settings.





