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: 04.1801.012
Code: 56.2101.000
Code: 43.2101.005
Code: 04.2101.008
Code: 56.2101.033
Code: 43.2101.035