1. Einleitung
The EPOS Sennheiser IMPACT SC 660 USB ML is a premium, wired, double-sided USB headset designed for professionals. It is optimized for Unified Communications (UC) and certified for Skype for Business, offering outstanding sound performance, convenient call handling, durability, and all-day comfort. This headset features HD sound, an ultra noise-cancelling microphone, and a USB connector for seamless integration with various devices and platforms.

Abbildung 1: Vorderseite view of the EPOS Sennheiser IMPACT SC 660 USB ML Headset.
2. Lieferumfang
Carefully unpack your EPOS Sennheiser IMPACT SC 660 USB ML headset and ensure all components are present:
- IMPACT SC 660 USB ML Headset
- Schutzhülle
- Cable clip mounted on headset
- Leatherette ear pad/s (spare)
- Magnethalter
- Kurzanleitung
- Sicherheitsleitfaden

Figure 2: All included components: headset, carry pouch, in-line call control, clothing clip, USB connector, leatherette ear pads, ear pad holders, safety guide, and quick guide.
3. Einrichtung
The IMPACT SC 660 USB ML headset is designed for simple plug-and-play setup.
3.1 Anschließen des Headsets
- Suchen Sie einen freien USB-Anschluss an Ihrem Computer oder einem kompatiblen Gerät.
- Stecken Sie den USB-Stecker des Headsets in den USB-Anschluss.
- The headset will be automatically recognized by your operating system. No additional drivers are typically required for basic functionality.
3.2 Softwarekompatibilität
This headset is optimized for Unified Communications (UC) and certified for various platforms, ensuring seamless integration and optimal performance:
- Skype für Unternehmen
- Microsoft Teams
- Google Meet
- Alcatel-Lucent Enterprise
- WebzB von Cisco
- Avaya
- Funktioniert mit Chromebook

Figure 3: The headset is optimized for various Unified Communications platforms, including Microsoft Teams, Google Meet, Alcatel-Lucent Enterprise, Webex by Cisco, Avaya, and Chromebook.
3.3 Tragen des Headsets
Adjust the headband and microphone boom for a comfortable and secure fit. The microphone boom is flexible to allow for optimal positioning near your mouth.

Figure 4: A person wearing the headset, demonstrating proper microphone positioning for natural, clear conversations with EPOS Voice and noise-cancelling microphone technology.
Video 1: Official product description video for the EPOS Sennheiser IMPACT SC 600 Series, highlighting key features and benefits for business communication.
4. Bedienungsanleitung
The IMPACT SC 660 USB ML headset provides intuitive controls for managing your calls and audio.
4.1 In-Line Call Control Unit
The headset features an in-line call control unit for easy management of calls and audio settings:
- Anruf annehmen/beenden: Press the dedicated call button to answer or end a call.
- Lautstärkeregelung: Verwenden Sie die Tasten „+“ und „-“, um die Lautstärke anzupassen.
- Mikrofon stumm schalten: Press the microphone mute button to mute or unmute your microphone.
- Wahlwiederholung: Some applications may support redialing directly from the control unit.
4.2 Mikrofonnutzung
The ultra noise-cancelling microphone filters out unwanted background noise, ensuring crystal-clear conversations. Position the microphone approximately two fingers' width from the corner of your mouth for optimal voice pickup.
4.3 Soundfunktionen
- HD Sound: Powered by a neodymium speaker, the headset delivers clear and natural voice and audio experiences.
- ActiveGard Technology: This technology protects users against acoustic injury caused by sudden sound bursts on the line.
- Sound Enhancement Profiles: The headset automatically adjusts sound enhancement profiles for optimal communication or multimedia listening.

Abbildung 5: Seite view of the headset, highlighting the in-line call control unit and USB connector.

Figure 6: Image illustrating how sound enhancement profiles adjust automatically for optimal communication or multimedia experiences.
5. Wartung
Proper care and maintenance will extend the life and performance of your headset.
5.1 Reinigung
- Ohrpolster: The soft leatherette ear pads can be gently wiped with a damp Tuch. Stellen Sie sicher, dass es vor Gebrauch vollständig trocken ist.
- Headset-Gehäuse: Use a soft, dry cloth to clean the headset body. Avoid using harsh chemicals or abrasive materials.
5.2 Speicherung
When not in use, store the headset in its protective case. The ear cups can be folded flat for easy transportation and storage, protecting the headset from damage.
5.3 Kabelpflege
The headset features Vectran reinforced cables for enhanced durability. Avoid sharp bends or excessive pulling on the cable to prevent damage.
6. Fehlerbehebung
If you encounter issues with your headset, try the following basic troubleshooting steps:
- Kein Ton/Mikrofon funktioniert nicht:
- Stellen Sie sicher, dass der USB-Stecker vollständig in den Anschluss eingesteckt ist.
- Check your computer's audio settings to ensure the headset is selected as the default playback and recording device.
- Verify that the microphone is not muted using the in-line control unit.
- Versuchen Sie, das Headset an einen anderen USB-Anschluss oder einen anderen Computer anzuschließen, um Probleme mit dem Anschluss oder dem System auszuschließen.
- Schlechte Tonqualität:
- Adjust the volume using the in-line control or your computer's settings.
- Ensure the microphone is positioned correctly near your mouth for clear voice pickup.
- Prüfen Sie, ob das Kabel oder die Steckverbinder physische Beschädigungen aufweisen.
- Headset nicht erkannt:
- Starten Sie Ihren Computer neu.
- Stellen Sie sicher, dass Ihr Betriebssystem auf dem neuesten Stand ist.
For more complex issues, refer to the detailed Safety Guide or Quick Guide included in the box, or contact EPOS customer support.
7. Spezifikationen
| Modellname | IMPACT SC 660 USB ML |
| Marke | EPOS |
| Konnektivitätstechnologie | USB |
| Kopfhöreranschluss | USB |
| Platzierung des Ohrs | Am Ohr |
| Formfaktor | Am Ohr |
| Farbe | Schwarz |
| Material | Kunststoffe |
| Artikelgewicht | 7.9 Unzen (224 Gramm) |
| Technische Daten | 13 x 2.44 x 2.44 Zoll |
| Frequency Response (Microphone) | 150 – 6,800 Hz (Breitband) |
| Frequency Response (Speaker) | 50 – 18,000 Hz |
| Impedanz | 200 Ohm |
| Lärmschutz | Noise Cancellation (Microphone) |
| Besonderheit | Leicht |
| Kompatible Geräte | Laptops, Tablets (via USB) |
| Kabelfunktion | Retractable, Vectran reinforced |
| Steuerungstyp | Call Control (in-line remote) |
8. Garantie und Support
8.1 Garantieinformationen
The EPOS Sennheiser IMPACT SC 660 USB ML headset comes with a 3 Jahre internationale Garantie. This warranty covers manufacturing defects and ensures peace of mind regarding the quality and durability of your headset. Please retain your proof of purchase for warranty claims.
8.2 Kundendienst
For technical assistance, warranty claims, or further inquiries, please visit the official EPOS website or contact their customer support directly. Refer to the contact information provided in your Safety Guide or on the EPOS webWebsite.