. The Jabra BIZ 2400 series brings a number of ground-breaking innovations which have raised the bar of sound quality comfort and durability in professional headsets.This series has been designed by Jabra to meet the specific requirements of call centre workers and professionals who work in busy office environments and need perfect audio quality in all their communications. Jabra has used state of the art technology in this series with neodymium speakers which provide the frequency range of desk top telephones for exceptionally clear conversations. Jabra's PureVoice technology filters out the irritating background noise of offices so when you are on the phone the person you are talking to will hear you perfectly.This headset is available in different configurations depending on your needs and you can choose between a standard omnidirectional microphone (recommended for quieter offices) or the noise-cancelling version (recommended for busier environments). Durability These headsets are built to last using materials that provide maximum durability at a minimum cost with surgical steel details Kevlar-reinforced cables a break-proof 360º microphone boom arm and strain relief that is 300% more resistant than other headsets on the market.This model of the Jabra BIZ2400 comes with a headband and two speakers which is the ideal style for you if you work in a noisy environment and have to focus all of your attention on your calls. The headband comes with flexifit and a t-bar that prevents it from getting tangled up in long hair. This Jabra BIZ2400 model is exclusively designed for traditional desk phones..