Also compatible With: Vertex VX-261, Vertex VX-264, Vertex VX-451, Vertex VX-454, Vertex VX-459, Vertex EVX-261, Vertex EVX-531, Vertex EVX-534, Vertex EVX-539

This aftermarket Vertex Standard Mic is guaranteed to meet or exceed the specifications of the original Vertex Standard Remote Speaker Mic. Our Two-Way Radio Remote Speaker Mics have been tested and approved for use in critical applications by the U.S. Military, Police Forces, and Fire Departments nationwide.