USB-connected single-ear headset with boom microphone, ideal for calls. - Model Name: Jabra BIZ 2400 II Mono USB (with LINK 230) • Model Number: HSC021 / P/N 2496-829-309 - Connection Type: USB connection - Design: Single-ear headset - Included Accessories: Manual, replacement parts - Microphone Type: Boom microphone • Noise-canceling microphone • UC compatible (for Zoom / Teams / softphones) (Box and all accessories included) Thank you for viewing. This is a top-of-the-line headset from Jabra, designed for call centers and remote operators. I purchased several for home use, but they are no longer needed, so I am selling them. Although unused, they have been stored at home for about six months, so please understand this.