Additional? Yes, the VX-800 contains an additional mc element specifically to be used to reduce background noise and provide clear, loud transmit audio.

The additional mic element can be found on the bottom of the VX-800 footprint. It gathers audio from the surrounding noise sources. This audio is inverted and added to the front mounted mic element.

This electronic canceling of the surrounding noise means we can keep a full range mic element at the front of the radio. This provides for clear, full audio range transmit audio with background noise canceled out.

Do you have a VX-800? Take a look at the mic element in the bottom

Tired of looking for your frequencies in the "can not use" lists from other manufacturers?

Vertex Standard has built in an automatic feature that will eliminate any internal birdie! If the CPU detects that an operating frequency might be affected by an internally generated birdie, the radio automatically shifts the frequency of the offending crystal very slightly. This removes the birdied without moving it to another channel !

Think about that the next time you're comparing radios. Why have frequencies that cannot be used?