A headset with a microphone arm on the bottom, a round middle part with three buttons (volume +/- and on/off) and an attachment beam to the top. The attachment beam has a long hole you can fit a screw through to attach it somewhere. A screw is shown with a plastic mount in the background as an example.
https://assets.chaos.social/media_attachments/files/113/080/372/114/218/747/original/869447587446364a.png