The Blackwire 5210 is a wired headset from Poly (a brand of the HP group).
It has a single earpiece, making it more suitable for call center use, or for anyone wanting to keep one ear free.
Thanks to its multi-connectivity, you can connect it either via USB-A or USB-C to a computer, and even to a 3.5mm jack on a phone or tablet for example! No need to choose!
For comfort, the cushions are made of memory foam and covered with a leatherette material to reduce background noise and make your longer calls enjoyable. The microphone is equipped with a system that minimizes "parasitic" conversations that occur in your environment.
For convenience, you have access to essential functions from the remote control fixed on the cable, such as volume adjustment and mute button.