Multi-device connectivity allows you to purchase a variety of different cords that let you connect to your smartphone or deskphone. Noise-cancelling microphones reduce unwanted background noise and are ideal in crowded and noisy open working environments. PeakStop instantly removes any harmful loud sounds before they even reach your ears. This keeps the sound level in the safe range and protects your hearing. Reinforced cords are built to last. They are extremely durable and will take most daily punishment. With FreeSpin you can rotate the boom-arm 360 degrees without the risk of it breaking. Find the microphone placement that works for you. The BIZ 2400 II offers outstanding sound at both ends of the call for a superior customer experience. Up to 40% lighter than competing headsets and with a low headband pressure, the Biz 2400 II allows the agent to focus on their customer conversation in unrivalled comfort. The Jabra BIZ 2400 II QD Duo is a duo headset with a QD (quick disconnect) p