The Jabra BIZ 2300 QD Mono Headset with GN 1200 Smart Cord is a kit available exclusively from B&H. It includes a lightweight over-the-head style headset with mono speaker, designed for use with traditional desk phones. The headset features a noise-cancelling microphone with standard vocal sensitivity as well as a swiveling, flexible boom arm for adjusting the position of the microphone. Also included is a 31.49" cord that allows you to connect the headset to virtually any telephone.