This is the Sennheiser (EPOS) SC 630 ML Single Sided USB-A computer headset.  Microsoft Teams Certified. Equiped with ultra noise canceling microphone to filter out background noise. HD wideband audio for the best voice sound.  In-line Call controls to adjust volume, and mute the call.  Large soft leatherette ear cups for clear sound and all day comfort

Key Features:

• Microsoft Teams Certified
• Compatible major UC applications such as Cisco, Avaya, IBM, etc
• Mono speaker, single sided wearing style
• Active noise canceling microphone, blocks out most of the background noise
• Foldable ear cups, easy for travel
• CircleFlex dual-hinge ear cup easy to adjust to your liking
• ActiveGard – technology protects you from noise spikes
• 3-year warranty
• old part# 504552