Hp Poly Hp Poly Blackwire 3215 Monaural Usb-C Headset +3.5Mm Plug +Usb-C/A Adapt\n\nHP Poly Blackwire 3215 Monaural USB-C Headset +3.5mm Plug +USB-C/A Adapter (Bulk). Product type: Headset. Connectivity technology: Wired. Recommended usage: Office/Call center. Headphone frequency: 20 - 20000 Hz. Cable length: 2.27 m. Weight: 64 g. Product colour: Black\nFreedom to work your way\nThe Blackwire 3200 Series provides a quality audio experience in a headset that's built for enterprise needs. With a sleek design and flexible microphone boom for a customizable fit, what's not to love?\nPoly signature audio quality\nExperience the high-quality audio you expect from Poly with a headset that offers PC wideband, a noise-canceling mic, and hi-fi stereo sound options. Dynamic EQ optimizes call quality and automatically adjusts the settings for listening to multimedia.\nLong-lasting comfort and portability\nRelax while you talk knowing your headset is secure- lightweight metal headband offers dura;