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

Package depth: 56 mm | Product colour: Black | Operating keys: Volume - | Headset type: Binaural | 3.5 mm connector: Yes | Depth: 32 mm | Width: 155 mm | Wearing style: Head-band | Operating keys: Mute | Ear coupling: Circumaural | Windows operating systems supported: Windows 10 | Headphone sensitivity: 90 dB | Mac operating systems supported: Yes | Height: 178 mm | Product type: Headset | Operating keys: Volume + | Country of origin: Mexico | USB connector: USB Type-C | Microphone type: Boom | Microphone frequency: 100 - 10000 Hz | Connectivity technology: Wired | Country of origin: China | Microphone direction type: Omnidirectional | Package width: 185 mm | Microphone sensitivity: -38 dB | Recommended usage: Office/Call center | Driver unit: 2.8 cm | Package weight: 242 g | USB connectivity: Yes | Operating keys: Answer/end call | Headphone frequency: 20 - 20000 Hz | Package height: 207 mm | Weight: 92 g | Signal-to-Noise Ratio (SNR): 118 dB | Hearing protection technologies: SoundGuard DIGITAL | Warnings: Do not disassemble by yourself.