Telecom's C-earset and microphone without VOX, with PTT.
List of compatible walkies
NOKIA
THR Series: THR-850, THR-880, THR-880i
Code: 43.2001.007
Code: 25.2101.063
Code: 43.2101.035
Code: 56.2101.022
Code: 80.2101.002
Code: 01.2101.011