Poly Blackwire 3225 Stereo USB-C Headset +3.5mm Plug +USB-C/A Adapter (Bulk)

Driver unit: 2.8 cm | Operating keys: Volume - | Microphone frequency: 100 - 10000 Hz | Operating keys: Mute | Operating keys: Volume + | Operating keys: Answer/end call | Microphone direction type: Omnidirectional | Microphone type: Boom | Headphone sensitivity: 90 dB | Microphone sensitivity: -38 dB | Hearing protection technologies: SoundGuard DIGITAL | Package depth: 56 mm | Weight: 92 g | Mac operating systems supported: Yes | Connectivity technology: Wired | Package weight: 242 g | Windows operating systems supported: Windows 10 | Product colour: Black | 3.5 mm connector: Yes | Width: 155 mm | Headphone frequency: 20 - 20000 Hz | Wearing style: Head-band | Headset type: Binaural | Package height: 207 mm | Depth: 32 mm | USB connectivity: Yes | Recommended usage: Office/Call center | Signal-to-Noise Ratio (SNR): 118 dB | Height: 178 mm | USB connector: USB Type-C | Product type: Headset