Vertex MH-67A8J Speaker Hand Microphone type VX-2000/4000 Series
Compatible with the following Vertex/Standard Mobile radios: VX-2100, VX-2200, VX-4100, VX-4200 series
Vertex Speaker Hand Microphone type MH-67A8J
Vertex Speaker Microphone Small type MH-450 is compatible with the following Vertex/Standard Mobile radios:
VX-2100, VX-2200, VX-4100, VX-4200 series
This is a genuine vertex standard microphone with manufactures warranty.