Telecom's C-earset and microphone without VOX, with PTT.
List of compatible walkies
MOTOROLA
MTH Series: MTH500, MTH600, MTH650, MTH800, MTH850
Code: 43.2101.085
Code: 56.2101.010
Code: 63.2101.037
Code: 25.2101.047
Code: 56.2101.014
Code: 25.2101.048