Plantronics Blackwire C3210 USB A Headset, On Ear Mono Headset, Wired PN: 209744 101 C3200 Series|Headphone/Headset| - AliExpress
Plantronics C3210 USB Headset - Headsets Direct, Inc.
Plantronics Blackwire C3210 Monoaural Mono Computer Headset - Wired, USB-A, Noise-Canceling, Volume Control - Mac and Windows Compatible - 209744-101 - Hunt Office UK