The BIZ 2400 II QD Mono NC corded headset includes new and improved features from the Jabra BIZ 2410 Omni Mono including first class audio sound, noise cancellation capabilities, as well as acoustic shock protection. Extra padding has been added to the headband for comfort, and the Jabra BIZ 2400 II Mono NC Corded Headset also offers the industry's only unbreakable 360 degree swiveling boom mic, as well as a Kevlar reinforced headset cord.