Part of the Poly EncorePro 520 collection On-ear design provides comfortable wear for extended use Wired connectivity offers unrestricted, reliable communication Built-in USB-A and USB-C connectors provide versatile plug-and-play compatibility Noise-cancelling minimizes background distractions for clear and focused communication Wide frequency response of 20Hz to 10kHz delivers crystal-clear audio for every call Allows you to answer soft-phone calls from any PC, no matter the type of USB port Boom microphone captures every word clearly for flawless communication Works across new and legacy equipment with QD models, or USB models with USB-A and USB-C connectors right on the cable Full backwards compatibility ensures seamless use with legacy equipment Remote firmware and cloud updates keep your headset up to date without hassle