This Bundle includes Two (2) x Biz 1500 Duo QD Noise Canceling Headsets, and 1 x Link USB Y-Training Cable. This 265 Link USB training cable is the only way to allow two Audio Sources to connect to a computer, enabling training via Two Headsets. Plugging the USB Training Cable into a computer via USB, it allows 2 GN QD Corded Headsets to connect via the appropriate QD ends of the USB Training Cable. The BIZ 1500 delivers professional performance at exceptional value. It's the cost-effective headset investment decision that doesn't compromise on quality. Designed for call center use, the BIZ 1500 increases agent productivity and performance. Its noise canceling-microphone ensures that background noise from your work environment will not be transmitted to your customers' ears. The headset comes complete with a QD (Quick Disconnect) plug for instant connectivity to a wide range of amplifiers and telephone systems. Other cords available for purchase will connect this headset to other devices. The BIZ 1500 is a duo (two ear) headset and its multiple adjustment points make it truly adaptable to individual preferences. Its headband wearing style combined with a lightweight design ensures all-day comfort – even in very call intensive environments. The leatherette cushions have an elevated outer ring for added comfort and deliver an exceptional user experience.