This headset features a noise-canceling microphone designed for use with various Cisco phone models, including series 6841, 6871, 7941g, 7961g, 7971g, 8811, 8845, 8865, 8941, and 8961. It comes with a U10 RJ9 cord and a 3.5mm adapter suitable for smartphones. The noise-canceling microphone helps reduce background noise for clearer communication. The headset provides a comfortable fit for extended use and is suitable for professional environments. Its versatile design allows connection to different devices, making it a practical choice for office or call center use.