Poly Blackwire 3220 Stereo USB-C UC Wired Headset (8X228AA)

The Poly Blackwire 3220 (8X228AA) is an on-ear stereo wired headset designed for PC connectivity through a USB Type-C cable or the included USB Type-C to USB Type-A adapter. It features 28 mm speakers with a 32-ohm impedance. The speaker bandwidth is specified as 200 Hz to 6.8 kHz in speech mode and 20 Hz to 20 kHz in media mode. The headset uses a noise-cancelling microphone with a microphone bandwidth of 100 Hz to 10 kHz. The microphone boom is 130 mm and rotates through 270 degrees. Speaker sensitivity is specified as 6 dB RLR, while microphone sensitivity is 10 dB SLR, with a signal-to-noise ratio greater than 24 dB. The headset uses foam ear cushions. Its cable consists of 79 cm from the inline module to the headset and 90 cm from USB to the inline module, for a total USB-to-headset cable length of 161 cm.

The Blackwire 3220 provides inline controls for call answer/end, call ignore/on hold, redial, microphone mute, and volume adjustment. It supports Windows 10, Windows 11, macOS, Android, and iOS and includes SoundGuard acoustic protection technology. The headset weighs 119 g with cable and 92 g without cable. The package includes the headset, USB Type-C to USB Type-A adapter, and user guide. The USB-C connection provides direct wired connectivity to compatible PCs, while the supplied USB-C-to-USB-A adapter provides compatibility with PCs equipped with USB-A ports. The specified speech and media audio modes allow the headset to provide the listed frequency ranges depending on the application. The noise-cancelling microphone, 270-degree boom rotation, inline call controls, foam ear cushions, SoundGuard technology, and compatibility with Windows, macOS, Android, and iOS provide the technical functions specified for this headset.