Jabra GN1900 Rj-9 Modular Jack Connector, Mono – Model Features: Monaural headset with noise-canceling microphone for the very noisy environments Optimized for the cost-conscious contact center Lightweight, sturdy design and professional quality Plug and play USB solution with wideband sound Jabra GN1900 RJ-9 Modular Jack Connector, Mono – Wearing Style Headband Jabra GN1900 RJ-9 Modular Jack Connector, Mono – Simple to use. Value-line USB solution. The Jabra GN1900 RJ-9 delivers professional performance and exceptional value. It is the cost-effective headset investment decision that doesn’t compromise on quality. Designed for contact center use, the Jabra GN1900 RJ-9 Modular 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 RJ-9 Modular plug for instant PC connectivity. Simply connect the headset to the computer and you’re ready to profit from the Jabra GN1900 low cost of ownership. The Jabra GN1900 USB is available in both mono and duo 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.