I see you also sell Pronto 9400, 9600 and RTI T3v and T4. What would be the key differences between these remotes? I can find all kinds of comparison sheets on the internet with technical differences, like screen sizes, color depth etc. But no real comparison/key selling points from a dealer and end-user point-of-view, like ease of programming, ability to control 3rd party devices (not IR, I guess they handle IR comparable), battery life and RF/WiFi range and overall remote quality. I know this might be pretty arbitrary, but it would be better than the commercial quotes from the manufacturers :-)