Hytera's D-earset and microphone with VOX directly attached to radio.
List of compatible walkies
Hytera: AP515, AP585, BP515, BP565, AP515LF, AP525LF, BP515LF
Code: 43.2101.056
Code: 56.2101.023
Code: 43.2101.064
Code: 56.2101.021
Code: 46.2101.009
Code: 80.2101.012