1. Ngwaahịa gafereview
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.

Foto: N'ihu view of the EPOS Adapt 661 Headset, showcasing its sleek black design and over-ear cups.
2. Ihe ngwugwu
Chọpụta na ihe niile dị na ngwugwu:
- EPOS Adapt 661 Headset
- BTD 800 USB-C Dongle
- Igwe nchaji USB
- Eriri ọdịyo (jakị 3.5 mm)
- Buru Akpa
- Ntuziaka nchekwa
- Mpempe akwụkwọ nnabata

Image: Contents of the EPOS Adapt 661 package, including the headset, USB-C dongle, USB cable, carry case, safety guide, and compliance sheet.
3. Nhazi
3.1. Ịchaji ekweisi
- Connect the supplied USB charging cable to the USB-C port on the headset.
- Connect the other end of the USB cable to a powered USB port (e.g., computer, wall adapter).
- Ihe ngosi LED dị na ekweisi ga-egosi ọkwa chajị. Chajị zuru oke na-ewe ihe dị ka awa abụọ.
3.2. Ịgbanye / gbanyụọ
- 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. Ijikọ ngwaọrụ
3.3.1. Bluetooth Pairing (Mobile Device)
- Gbaa mbọ hụ na agbanyere ekweisi.
- 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.
- On your mobile device, go to Bluetooth settings and select "EPOS Adapt 661" from the list of available devices.
- Ozugbo ejikọtara ya, LED ahụ ga-agbanwe acha anụnụ anụnụ.
3.3.2. Connecting to PC (BTD 800 USB-C Dongle)
- Plug the BTD 800 USB-C dongle into an available USB-C port on your PC.
- The dongle will automatically pair with the headset. The LED on the dongle will turn solid blue when connected.
- Ensure the EPOS Adapt 661 is selected as the audio input and output device in your PC's sound settings.
- For Microsoft Teams certification features, ensure Microsoft Teams is running on your PC.
4. Ntuziaka ọrụ
4.1. Njikwa ntọala
- Njikwa olu: Use the touch panel on the right earcup (swipe up/down) or physical buttons (if present) to adjust volume.
- Gwuo/kwụsịtụ: Tap the center of the right earcup.
- Sochie Mfe: Swipe forward/backward on the right earcup.
- Njikwa oku:
- Answer/End Call: Tap the center of the right earcup.
- Reject Call: Press and hold the center of the right earcup.
- Enyemaka Olu: 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. Nkagbu mkpọtụ mkpọtụ (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.
- Ụda Stereo kacha elu: 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.
- Njikọ ọtụtụ ebe: Connect simultaneously to two Bluetooth devices (e.g., mobile phone and PC via dongle), allowing seamless switching between audio sources.
- Njikọ Alexa: 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. Nlekọta
- Nhicha: Jiri ákwà dị nro ma kpọọ nkụ hichaa ekweisi ahụ. Ejila ihe nhicha mmiri ma ọ bụ ihe mgbaze.
- Nchekwa: When not in use, store the headset in its provided carry case to protect it from dust and damage.
- Nlekọta batrị: To prolong battery life, avoid fully discharging the battery frequently. Charge the headset regularly.
- Okpomọkụ: Avoid exposing the headset to extreme temperatures (below -4°F / -20°C or above 140°F / 60°C).
7. Nchọpụta nsogbu
7.1. No Sound or Poor Audio Quality
- Lelee olu: Ensure the headset volume and device volume are turned up.
- Tinyegharịa ụzọ: Disconnect and re-pair the headset with your device.
- Nhọrọ ngwaọrụ: On your PC, ensure "EPOS Adapt 661" is selected as the default playback and recording device.
- Nchaji batrị: A low battery can affect performance. Ensure the headset is charged.
7.2. Headset Not Connecting
- Ike Na: Ensure the headset is powered on and in pairing mode (if applicable).
- Bluetooth agbanyere: Chọpụta agbanyere Bluetooth na ngwaọrụ gị.
- Ogologo: Ensure the headset is within the Bluetooth range (up to 82 feet / 25 meters line of sight).
- Ntinye aka: Wepụ na ngwaọrụ ikuku ndị ọzọ nwere ike ịkpata ndabichi.
- Njikọ Dongle: If using the BTD 800 dongle, ensure it is securely plugged into the PC.
7.3. Active Noise Cancellation (ANC) Not Effective
- Kwesịrị ekwesị: Ensure the earcups form a good seal around your ears. Adjust the headband for a snug fit.
- ANC na: Verify that ANC is activated.
- gburugburu: Adaptive ANC adjusts to different noise types; some irregular or sudden noises may not be fully cancelled.
8. Nka na ụzụ nkọwa
| Aha Nlereanya | EGO 661 |
| Nọmba edemede | 1001004 |
| Ụdị ejiji | Ihe mkpuchi isi, n'elu-ntị |
| Agba | Nwa |
| Njikọta | Bluetooth 5.0, Wired (3.5 mm Jack, USB-C) |
| Ikuku iche | Ruo mita 25 nke anya |
| Nkagbu mkpọtụ nọ n'ọrụ | ANC na-agbanwe agbanwe |
| Igwe okwu | EPOS AI™ optimized voice pickup |
| Oge Nchaji | Ihe ruru. awa 3 |
| Oge Njikere | Ruo awa iri abụọ |
| Okpomọkụ na-arụ ọrụ | 32°F - 104°F (0°C - 40°C) |
| Okpomọkụ nchekwa | -4°F - 140°F (-20°C - 60°C) |
| Ibu ekweisi | 8 ounce (227 grams) |
| Akụkụ (Ngwaahịa) | 8.2 x 7.4 x 2.6 sentimita (20.8 x 18.8 x 6.6 cm) |
| Asambodo | Microsoft Teams, aptX, Made for iPhone (MFI) |
| Atụmatụ pụrụ iche | ActiveGard, WindSafe, TalkThrough, Room Experience, SpeakFocus, Mobile App Support, Advanced Own-Voice, Multimedia & Music Listening, Touch Control, Voice Prompts |
9. Akwụkwọ ikike na nkwado
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.
Akụrụngwa dị n'ịntanetị:
- Official EPOS Websaịtị: www.eposaudio.com
- Product Support Page: (Refer to official website for specific product support page)