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

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