You are looking at a desirable and unique older used Amphenol male 4 pin microphone cable connectors from the 1970's. Most 4 pin connectors had 4 pins and were soldered in one setting or the other but this unique connector allowed you to move the hot pin to either Hi Z or Lo Z depending on your needs.
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New V12 Earphones Wireless Bluetooth 5.3 Open Headsets HiFi Stereo Sport Earbuds HD Mic Call Ear Clip Headphones for BOSE Ultra
Aliexpress UK
MODEL NUMBER(S) MARKED ON THIS ITEM IS: 636. WHAT WAS TESTED ON or WITH THIS SPECIFIC ITEM: Tested on sound system. LOCAL PICKUP We generally do.
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USB Type C Earbuds Metal Heavy Bass Earphones In Ear Noise Reduction 3.5mm Wired Headphones with Mic for Samsung Galaxy iPhone
Aliexpress UK
Very flexible and lower stand threads are in perfect condition as seen in the pics provided. This is the only AKG gooseneck of this style I have ever seen so these are not too common. This special gooseneck was designed to use with any XLR microphone from the 1950's to present.
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Philips TAN5609 Bone Conduction Headphone Wireless Bluetooth Sports Earbuds HD Mic Call Noise Reduction Headset 180mAh Long Life
Aliexpress UK
The SO-1B simply screws onto your stand like an old microphone would be. Once in place you can attach your mic to the top of the adapter. This adapter solves those problems and is much easier on your mic as attaching and detaching your mic from a stand can risk stripping the soft threads on your mic.
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Original Xiaomi Type-C Wired Earphone With Mic Headphones Sport Game Waterproof In-Ear HiFi Headset For Redmi POCO Samsung
Aliexpress UK
The SO-1B simply screws onto your stand like an old microphone would be. Once in place you can attach your mic to the top of the adapter. This adapter solves those problems and is much easier on your mic as attaching and detaching your mic from a stand can risk stripping the soft threads on your mic.
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K12 Wireless Bluetooth Speaker Multifunction with 2 Microphone RGB Portable Music Player Karaoke Machine for Child Home Gift
Aliexpress UK
MODEL NUMBER(S) MARKED ON THIS ITEM IS: 22D. Mic audio is wired shield + white. P.T.T Switch is wired to Shield + Blue. Item is tested and working, Includes a 6' Belden 9463 shielded pair cable. WHAT WAS TESTED ON or WITH THIS SPECIFIC ITEM: Tested audio on sound system Tested PTT on continuity tester.
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PARAMITA DG08 Conduction Headphone Wireless Bluetooth Headset with MIC BT 5.3 IPX7 Waterproof for Sport Running Workouts Driving
Aliexpress UK
Vintage 1984 ELECTRO VOICE Catalog Index W/ Product Specs Mixers Mics Etc. Pictures are representative, tailored manual from a sound system installed in a church in 1984. Nice vintage original electronics information guides. Will be shipped media mail to save on shipping costs
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TOZO Open Earing Open Ear Earphone Ear Clip Wireless Headset Bluetooth TWS Earbuds in Mic with Earhooks for Running Sport
Aliexpress UK
I would never suggest you 'knock around' this beauty. Even the desk stand has that art-deco flair, which is actually a wooden base with brass overlay, painted black,plus new felt added to protect your desktop.
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New K12 Karaoke Machine Portable Bluetooth Speaker With 1-2 Wireless Microphones HiFi Family Singing Loudspeaker Children's Gift
Aliexpress UK