This is the Yealink brand mono over-the-head headset, plug-and-play compatible with all of the Yealink brand IP phones. Lightweight with soft leatherette ear pads made from bio-mimetic protein-based leather ensure luxurious comfort, while its unique pivoting boom deliver crystal-clear, private conversations. Noise canceling microphones, block out 50-60% of unwanted office noise. Affordable for large call center deployements. Quick disconnect allows you to talk about without removing the headset.
For more information, see Yealink YHS33 Datasheet