What's the pinout for "Kenwood" 2.5mm TRS/3.5 mm TRS connector? - Amateur Radio Stack Exchange
Microphone plug and socket pinouts
Amazon.com: Two Way Radio Wireless Bluetooth Handheld Speaker Mic, Shoulder Microphone Compatible with BaoFeng UV-5R UV-82 BF-F8HP Kenwood BTECH Walkie Talkie Accessories : Electronics
FT-250R_FT270R pinouts + 4 pin plug.jpg
Yaesu FT3DE mic connector pinout and wiring - Isle of Avalon Amateur Radio Club