EPOS Adapt 661 Headset User Manual

1. Product Overview

The EPOS Adapt 661 is a premium Bluetooth headset designed for maximizing focus and productivity in various environments. It features adaptive Active Noise Cancellation (ANC), superb call clarity powered by EPOS AI™, and stereo sound. The headset is optimized for Unified Communications (UC) and certified for Microsoft Teams, ensuring seamless integration with professional communication platforms. It includes a BTD 800 USB-C dongle for PC connectivity.

Image: Front view of the EPOS Adapt 661 Headset, showcasing its sleek black design and over-ear cups.

2. Package Contents

Verify that all items are present in the package:

• EPOS Adapt 661 Headset
• BTD 800 USB-C Dongle
• USB Charging Cable
• Audio Cable (3.5 mm jack)
• Carry Case
• Safety Guide
• Compliance Sheet

Image: Contents of the EPOS Adapt 661 package, including the headset, USB-C dongle, USB cable, carry case, safety guide, and compliance sheet.

3. Setup

3.1. Charging the Headset

1. Connect the supplied USB charging cable to the USB-C port on the headset.
2. Connect the other end of the USB cable to a powered USB port (e.g., computer, wall adapter).
3. The LED indicator on the headset will show charging status. A full charge takes approximately 3 hours.

3.2. Powering On/Off

• To power on: Press and hold the Power button until the LED illuminates.
• To power off: Press and hold the Power button until the LED turns off.

3.3. Connecting to Devices

3.3.1. Bluetooth Pairing (Mobile Device)

1. Ensure the headset is powered on.
2. Activate Bluetooth pairing mode on the headset (refer to the specific button combination in the safety guide, typically holding the Bluetooth button). The LED will flash blue/red.
3. On your mobile device, go to Bluetooth settings and select "EPOS Adapt 661" from the list of available devices.
4. Once connected, the LED will turn solid blue.

3.3.2. Connecting to PC (BTD 800 USB-C Dongle)

1. Plug the BTD 800 USB-C dongle into an available USB-C port on your PC.
2. The dongle will automatically pair with the headset. The LED on the dongle will turn solid blue when connected.
3. Ensure the EPOS Adapt 661 is selected as the audio input and output device in your PC's sound settings.
4. For Microsoft Teams certification features, ensure Microsoft Teams is running on your PC.

4. Operating Instructions

4.1. Basic Controls

• Volume Control: Use the touch panel on the right earcup (swipe up/down) or physical buttons (if present) to adjust volume.
• Play/Pause: Tap the center of the right earcup.
• Track Skip: Swipe forward/backward on the right earcup.
• Call Management:
  • Answer/End Call: Tap the center of the right earcup.
  • Reject Call: Press and hold the center of the right earcup.
• Voice Assistant: Press the dedicated voice assistant button (if present) or tap and hold the center of the right earcup to activate your device's voice assistant (e.g., Alexa, Siri, Google Assistant).

4.2. Active Noise Cancellation (ANC)

The Adapt 661 features adaptive ANC, which automatically adjusts noise reduction based on your environment. You can typically toggle ANC on/off or adjust its intensity using a dedicated button on the headset or through the EPOS Connect app.

4.3. TalkThrough Function

The TalkThrough feature allows you to hear your surroundings without removing the headset. Activate this function via a dedicated button or the EPOS Connect app to temporarily reduce audio volume and amplify ambient sounds.

4.4. Microsoft Teams Integration

When connected to a PC via the BTD 800 USB-C dongle, the headset offers seamless Microsoft Teams integration. A dedicated button on the headset can launch Microsoft Teams on your PC, answer/end Teams calls, and mute/unmute the microphone within Teams.

5. Key Features Explained

Image: EPOS Adapt 661 Headset highlighting key features such as superb call clarity, adaptive ANC, and superior sound.

• EPOS AI™ Powered Call Clarity: Machine learning algorithms optimize voice pickup from three advanced microphones, ensuring a natural listening experience for your callers.
• Adaptive Active Noise Cancellation (ANC): A 4-microphone system continuously monitors your environment, adjusting noise reduction for optimal focus indoors and minimizing wind noise outdoors.
• Superior Stereo Sound: Enjoy high-quality audio for both communication and music, enhanced by a personalized audio profile to aid concentration.
• UC Certified Solution: Certified for Microsoft Teams and optimized for various Unified Communications platforms, guaranteeing clear and reliable calls.
• Multi-point Connectivity: Connect simultaneously to two Bluetooth devices (e.g., mobile phone and PC via dongle), allowing seamless switching between audio sources.
• Alexa Integration: Built-in Alexa voice assistant for hands-free control and organization.

Image: The EPOS Adapt 661 Headset with "Optimized for UC" text, displaying logos for Microsoft Teams, Webex, Avaya, and Alcatel-Lucent Enterprise, indicating broad compatibility.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the headset. Do not use liquid cleaners or solvents.
• Storage: When not in use, store the headset in its provided carry case to protect it from dust and damage.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headset regularly.
• Temperature: Avoid exposing the headset to extreme temperatures (below -4°F / -20°C or above 140°F / 60°C).

7. Troubleshooting

7.1. No Sound or Poor Audio Quality

• Check Volume: Ensure the headset volume and device volume are turned up.
• Re-pair: Disconnect and re-pair the headset with your device.
• Device Selection: On your PC, ensure "EPOS Adapt 661" is selected as the default playback and recording device.
• Charge Battery: A low battery can affect performance. Ensure the headset is charged.

7.2. Headset Not Connecting

• Power On: Ensure the headset is powered on and in pairing mode (if applicable).
• Bluetooth On: Verify Bluetooth is enabled on your device.
• Distance: Ensure the headset is within the Bluetooth range (up to 82 feet / 25 meters line of sight).
• Interference: Move away from other wireless devices that might cause interference.
• Dongle Connection: If using the BTD 800 dongle, ensure it is securely plugged into the PC.

7.3. Active Noise Cancellation (ANC) Not Effective

• Proper Fit: Ensure the earcups form a good seal around your ears. Adjust the headband for a snug fit.
• ANC On: Verify that ANC is activated.
• Environment: Adaptive ANC adjusts to different noise types; some irregular or sudden noises may not be fully cancelled.

8. Technical Specifications

9. Warranty and Support

The EPOS Adapt 661 Headset is covered by a manufacturer's warranty. For detailed warranty information, please refer to the compliance sheet included in your package or visit the official EPOS website. For technical support, troubleshooting assistance beyond this manual, or to inquire about replacement parts, please contact EPOS customer service through their official support channels.

Online Resources:

• Official EPOS Website: www.eposaudio.com
• Product Support Page: (Refer to official website for specific product support page)