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. Jabra BIZ 2400 II USB Skype For Business Mono is a mono headset that provides USB connectivity optimized for Skype For Business.