This product is either discontinued or we cannot get that from suppliers.
Poly, 209750-22, Poly - Plantronics Blackwire headset, Headset wired 3.5 mm jack, USB-C, Compatibility Mac, Windows, Recommended Use Portable electronics, computer communication, Headphones Form Factor On-ear, Connectivity Wired, Sound Output Mode Mono, Audio Frequency Response 20 - 20000 Hz, Boom Microphone, Controls Mute, volume, answer/end, hold, redial. The Poly/Plantronics Blackwire C3215 209750-22 USB-C Corded Monaural Headset with Plantronics signature audio provides top-notch features.