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

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