6 Options brand new 
1- Plantronics Blackwire C3210 Over the Head USB Monaural Headset - Black/Red
2- NEW Plantronics Blackwire C3220 USB-A Binaural Headset 

3- Plantronics Blackwire C3225 | USB | Stereo Headset | Zoom | Teams - NEW

4- Poly Plantronics Blackwire 3315 BW3315-M Mono USB-A Headset with 3.5mm Plug 214014-01

5- Poly Plantronics Blackwire C5220 USB-C Binaural Headset - 

6- Poly Blackwire 3310 USB-A MS Monaural Headset

Monaural design
noise cancelling microphone
Microsoft Teams certified
wideband for best PC audio telephony
inline controls let you answer/end
mute and control the volume of PC calls with ease
Connect to via PC USB-A

The great appeal of the Blackwire 3300 Series is apparent at first sight: It has a sleek, modern design. Workers want to wear it - so your investment pays off. Not only that, it sounds as good as it looks, with high-quality audio you’ve come to expect from Poly. The Blackwire is UC corded—for plug-n-play simplicity.