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

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