. Make Every Conversation More ProductiveThis headset delivers whether you're on a crucial call or trying to meet a deadline in a distracting workplace. The stereo ultra-wideband digital audio provides clear acoustically accurate sound. The noise canceling microphone makes sure you get heard even in noisy surroundings. And the specially designed earpieces provide comfort for the longest days.Clear Stereo SoundThe ultra-wideband digital audio reproduces sound accurately.Noise Canceling MicrophoneMeetings and conference calls will be more productive as voices clearly cut through even noisy surroundings.Inline Volume and Microphone ControlsAdjust volume or mute on the fly with handy inline controls. And the call indicator light lets people know you're "busy."Unified CommunicationOptimised for Microsoft Lync™ Improve Employee ProductivityMake every conversation more productive . Easy to Order and DeployEverything the Customer needs in one easy to open easy to deploy package. The 5-Pack includes 5 sets of user documentation with 5 CDs (if software is required) . SavingsReduce costs with volume pricingPackagingReduced waste environmentally friendly . Two-Year Warranty. .