Poly Blackwire 3225 USB-C UC Wired Headset With 3.5mm Plug (8X229AA)

The Poly Blackwire 3225 (8X229AA) is an on-ear stereo wired headset designed for PC and tablet connectivity. It connects to compatible PCs through USB Type-C or the included USB Type-C to USB Type-A adapter and supports tablets through a 3.5 mm audio port. The headset features 28 mm speakers with a 32-ohm impedance. 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 measures 130 mm and rotates through 270 degrees. Speaker sensitivity is 6 dB RLR, microphone sensitivity is 10 dB SLR, and the microphone signal-to-noise ratio is greater than 24 dB. The headset uses artificial leather ear cushions. The cable has 129.5 cm between the inline module and headset and 90 cm between USB and the inline module, for a total USB-to-headset cable length of 227 cm.

The Blackwire 3225 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. HP/Poly also specifies Dynamic EQ, which optimizes call quality and automatically adjusts EQ settings for music and multimedia playback. The package includes the headset, USB Type-C to USB Type-A adapter, travel case, and user guide. The combination of USB Type-C, USB Type-A adapter, and 3.5 mm connectivity provides the listed wired connection options for compatible PCs, mobile devices, and tablets. The stereo configuration, 28 mm speakers, noise-cancelling microphone, adjustable boom, inline controls, artificial leather ear cushions, and SoundGuard technology provide the specified technical characteristics of this model.