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: 43.2101.067
Code: 56.2101.031
Code: 56.2101.001
Code: 43.2101.079
Code: 10.2101.002
Code: 43.2101.081