Black wire 5200 seriesthe Black wire 5200 series fits your busy workday. Easy to use, its USB or USB-C and 3.5 mm connectivity lets you work on a variety of devices. Ergonomically designed, It's comfortable enough to wear all day, on your longest calls. The Black wire 5200 series-the power to connect and work easily is here. ideal for all-day use, long conference calls and listening to multimedianoise canceling microphone masks nearby Talkers for maximum call privacyavailable in monaural (Black wire 5210) or hi-fi stereo with passive noise reduction (Black wire 5220) variants include universal USB or USB-C