nostr:npub1a73wyr3s8ffagwsnlfd548d0nsaqcwdnn6550akehaxglw3kzc8qce7y6q 

looks like shure countryman.

I'm not sure how many other companies have a similar design.

https://www.bhphotovideo.com/c/product/637191-REG/Countryman_E6SOWMGT2SL_E6s_Omnidirectional_Earset_Microphone.html