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: 43.2101.070
Code: 63.2101.047
Code: 25.2101.055
Code: 43.2101.078
Code: 25.2101.050
Code: 56.2101.028