Without specific details on "Rvn4191.rar", it's difficult to provide a precise list of features for this exact version. The nomenclature "RVN4191" could refer to a specific model or version of Motorola radios or programming software.

Requires a specific Motorola programming cable (usually RIB-based or USB-compatible cable).

Software is useless without the cable. For the radios listed above, you need a or a RIB-less USB programming cable (e.g., a KN410 or aftermarket equivalent).

MOTOTRBO Customer Programming Software (CPS) 2.0 - Free Download. TwoWayRadioGear How to Program Motorola Radios - Tech Wholesale

Here’s what you need to know before proceeding:

: Customize the programmable side buttons for functions like "Nuisance Delete," "Monitor," or "High/Low Power" switching.