Make the most of every call. The EncorePro 300 Series, contact center headsets, are good for workers, callers, and your bottom line. Long-lasting comfort. Total reliability. Noise canceling so customers hear clearly. And exceptional value. Give your teams and customers the quality audio you expect from Poly, with a flexible noise-canceling microphone to tune out background buzz and chatty neighbors. Better understanding leads to better outcomes, and happier customers. That's why we use voice-optimized frequency response to make conversations clearer? and more accurate.