Sennheiser CIRCLE™ SC 230 USB CTRL II (single-sided) feature an in-line call control unit and work seamlessly with all UC platforms. With Sennheiser Voice Clarity, a noise-cancelling microphone and a lightweight, ergonomic design for all day use, they are the perfect tools when clear communication and long-term user comfort are crucial to the job in hand.
- Monaural Headband
- USB connector
- Noise cancelling microphone
- Microphone frequency response 150-6800 Hz
- speaker frequency response 50-18000 Hz
- Max 113dB limited by ActiveGard