The H251N-CD is a monaural, ear muff headset. Noise Canceling microphone. 4 pin Quick Disconnect.
HP Inc.
7S443AA
https://www.hp.com
Poly
SupraPlus
H251N-CD
H251N-CD Over-The-Head, Ear Muff Receiver
Headset
Wired
Mono
Over-the-head | On-ear
Monaural
Noise Cancelling
Boom
Quick Disconnect
Ear-cup
Yes