Poly Blackwire 3220 Stereo USB-C Headset +USB-C/A Adapter

Certification: UC | Operating keys: Mute | Operating keys: Volume + | Operating keys: Volume - | Microphone frequency: 100 - 10000 Hz | Microphone sensitivity: -38 dB | Control unit type: In-line control unit | Operating keys: Reject call | Microphone type: Boom | Operating keys: Answer/end call | Microphone direction type: Omnidirectional | Audio adapters included: USB | Ear pad material: Polyurethane (PU) | Hearing protection technologies: SoundGuard DIGITAL | Signal-to-Noise Ratio (SNR): 118 dB | Package height: 10 mm | Control type: Buttons | USB connectivity: Yes | Cable length: 1.61 m | Impedance: 32 Ω | Noise reduction: Yes | Volume control: Button | Recommended usage: Office/Call center | Connectivity technology: Wired | Package depth: 254 mm | Quick start guide: Yes | Windows operating systems supported: Windows 10 | Product type: Headset | Wearing style: Head-band | USB connector: USB Type-A | Driver unit: 2.8 cm | Headset type: Binaural | Mac operating systems supported: Yes | Cable colour: Red | Weight: 64 g | Product colour: Black | Headphone sensitivity: 90 dB | Package weight: 152 g