Poly (older model) Blackwire 5210 Wired Headset, USB-C Connection, Single Ear, Noise Cancelling

Single-ear, foldable design (carrying pouch included) Wideband technology supports wideband VoIP for more natural-sounding voice calls Equipped with an in-line controller that allows you to adjust volume, mute the microphone (on/off), and answer/end calls (compatible applications) at your fingertips USB-C and 3.5mm 4-pole analog connectors Poly is the combined brand of Plantronics and Polycom.