The BIZ 2400 II offers outstanding sound at both ends of the call for a superior customer experience with true plug-and-play functionality. Up to 40% lighter than competing headsets, the BIZ 2400 II allows the agent to focus on their customer conversation in unrivalled comfort. The Jabra BIZ 2400 II USB Skype For Business Mono is a mono headset that provides USB connectivity optimised for Skype For Business.The Jabra BIZ 2400 II USB Skype For Business Mono is a mono headset that provides USB connectivity optimised for Skype For Business.