The Jabra BIZ 2400 II Mono USB 3-1 NC Headset is a fantastic monaural wired headset that ensures exceptional call quality. It is an upgrade on the original Jabra 2400, and comes with a number of additional features. It ensures comfortability and reliability, whilst also providing high quality audio and voice clarity at both ends of the call. It's also 40% lighter than most headsets, which helps users stay comfortable and focused all day. This headset may be connected to computers via USB. Additionally. it comes with three different wearing styles. Features Noise cancelling microphone and HD Voice Crystal Clear audio Large foam ear cushions for all day comfort and noise protection A 360 degree rotation unbreakable boom arm. Peakstop technology to prevent harmful sounds from reaching your ear This is one of the newest variants in the biz 2400 II range and therefore been upgraded from the older biz 2400 models. In addition, these new headsets come with improved comfort both in the headband and ear cushions which now include additional padding.