This kit from B&H contains two Polsen US-OB-33 omnidirectional USB boundary microphones with mute.
With its CD-quality sound and simple plug-and-play hookup to your computer, the US-OB-33 omnidirectional USB boundary microphone offers improved audio performance and intelligibility over your computer's internal mic, making it beneficial for video meetings, conferences, and even interviews. The omnidirectional polar pattern of the US-OB-33 delivers 360 degrees of responsive sound pickup, allowing participants to converse naturally while seated comfortably around the microphone.
Thanks to its bus-powered, driver-free design, the US-OB-33 is ready for use out of the box, no batteries or software installation required. The mic's built-in A/D converter operates at 16-bit / 48 kHz digital resolution to ensure accurate voice capture into your computer. The durable metal housing features a convenient mute switch with LED indication to enable private discussions during meetings.