BEL STI DRIVER > V1
For one simple reason "NEW Exclusive TotalShield™ Technology"
For you nut swiggin V1 kids that means this detector can NOT be detected by a radar detector detector (got that).
Most state troopers have radar detector detectors in their cars so just having any other detector plugged in can get you nailed.
http://www.beltronics.com/sti.html