1. Introdución
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.

Figura 1: Fronte view of the EPOS Sennheiser IMPACT SC 660 USB ML Headset.
2. Que hai na caixa
Carefully unpack your EPOS Sennheiser IMPACT SC 660 USB ML headset and ensure all components are present:
- IMPACT SC 660 USB ML Headset
- Funda protectora
- Cable clip mounted on headset
- Leatherette ear pad/s (spare)
- Soporte magnético
- Guía rápida
- Guía de seguridade

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. Configuración
The IMPACT SC 660 USB ML headset is designed for simple plug-and-play setup.
3.1 Conexión dos auriculares
- Localiza un porto USB dispoñible no teu ordenador ou dispositivo compatible.
- Conecte o conector USB dos auriculares ao porto USB.
- The headset will be automatically recognized by your operating system. No additional drivers are typically required for basic functionality.
3.2 Compatibilidade de software
This headset is optimized for Unified Communications (UC) and certified for various platforms, ensuring seamless integration and optimal performance:
- Skype para empresas
- Microsoft Teams
- Google Meet
- Alcatel-Lucent Enterprise
- Webex por Cisco
- Avaia
- Funciona con 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 Como usar os auriculares
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. Instrucións de funcionamento
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:
- Responder/Finalizar chamada: Press the dedicated call button to answer or end a call.
- Control de volume: Usa os botóns "+" e "-" para axustar o volume de escoita.
- Silenciar micrófono: Press the microphone mute button to mute or unmute your microphone.
- Volver marcar: Some applications may support redialing directly from the control unit.
4.2 Uso do micrófono
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 Características de son
- Son de alta definición: 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.

Figura 5: Lateral 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. Mantemento
Proper care and maintenance will extend the life and performance of your headset.
5.1 Limpeza
- Almofadas para oídos: The soft leatherette ear pads can be gently wiped with a damp pano. Asegúrate de que estean completamente secos antes de usalos.
- Headset Body: Use a soft, dry cloth to clean the headset body. Avoid using harsh chemicals or abrasive materials.
5.2 Almacenamento
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 Coidado dos cables
The headset features Vectran reinforced cables for enhanced durability. Avoid sharp bends or excessive pulling on the cable to prevent damage.
6 Solución de problemas
If you encounter issues with your headset, try the following basic troubleshooting steps:
- Sen son/Micrófono non funciona:
- Asegúrate de que o conector USB estea completamente inserido no porto.
- 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.
- Tenta conectar os auriculares a un porto USB diferente ou a outro ordenador para descartar problemas específicos do porto ou do sistema.
- Mala calidade de son:
- 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.
- Comprobe se o cable ou os conectores presentan danos físicos.
- Headset Not Recognized:
- Reinicia o teu ordenador.
- Asegúrate de que o teu sistema operativo estea actualizado.
For more complex issues, refer to the detailed Safety Guide or Quick Guide included in the box, or contact EPOS customer support.
7. Especificacións
| Nome do modelo | IMPACT SC 660 USB ML |
| Marca | EPOS |
| Tecnoloxía de conectividade | USB |
| Jack para auriculares | USB |
| Colocación do oído | Na Orella |
| Factor de forma | Na Orella |
| Cor | Negro |
| Material | Plásticos |
| Peso do elemento | 7.9 onzas (224 gramos) |
| Dimensións do produto | 13 x 2.44 x 2.44 polgadas |
| Resposta de frecuencia (micrófono) | 150 – 6,800 Hz (Wideband) |
| Frequency Response (Speaker) | 50-18,000 Hz |
| Impedancia | 200 ohmios |
| Control de ruído | Cancelación de ruído (micrófono) |
| Característica especial | Lixeiro |
| Dispositivos compatibles | Laptops, Tablets (via USB) |
| Función de cable | Retractable, Vectran reinforced |
| Tipo de control | Call Control (in-line remote) |
8. Garantía e soporte
8.1 Información da garantía
The EPOS Sennheiser IMPACT SC 660 USB ML headset comes with a 3 anos de garantía internacional. 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 Atención ao cliente
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 websitio.