The Poly Blackwire C3320 USB Type-A Headset provides a best-in-class audio experience in a headset built for enterprise deployment. It has a modern, stylish design. Its microphone boom is flexible so workers can customize the fit. It features a noise-canceling flexible boom microphone. It has a USB Type-A cable for connecting to most Macs and Windows PCs. The headset features wideband audio, a noise-canceling microphone, and digital signal processing (DSP). The headphone uses the inline controls to answer/end calls, control volume, and mute to simplify call management and the audio alerts provide call, mute, and volume status. The stereo design boasts leatherette-encased, on-ear speakers featuring hearing protection to guard against sounds above 118 dBA. The inline controls can also be used to control music and other multimedia applications. And the headset is fully adjustable with a comfortable padded headband, pillow-soft ear cushions, and 180-degree pivoting speakers. Not only that, it sounds as good as it looks with high-quality audio you’d expect from Poly. It has 2 years of warranty.