Poly Blackwire 3220 Stereo USB-C Black

Connectivity technology: Wired | Depth: 32 mm | USB connector: USB Type-C | Noise reduction: Yes | Volume control: Button | USB connectivity: Yes | Impedance: 32 Ω | Headset type: Monaural | Driver unit: 2.8 cm | Recommended usage: Office/Call center | Operating keys: Volume + | Control unit type: In-line control unit | Wearing style: Head-band | Cable colour: Red | Width: 155 mm | Package depth: 56 mm | Control type: Buttons | Signal-to-Noise Ratio (SNR): 90 dB | Package height: 207 mm | Mac operating systems supported: MacOS | Microphone direction type: Omnidirectional | Product colour: Black | Operating keys: Volume - | Headphone sensitivity: 90 dB | Height: 207 mm | Windows operating systems supported: Windows 10 | Package weight: 242 g | Product type: Headset | Microphone frequency: 100 - 10000 Hz | Microphone type: Boom | Operating keys: Mute | Operating keys: Answer/end call | Microphone sensitivity: -38 dB | Hearing protection technologies: SoundGuard DIGITAL | Warnings: Do not disassemble or modify the product yourself. | Ear pad material: Polyurethane (PU)