I had a V1 in my car and had lots of problems with it. I now have a Passport radar and it's pretty good. I think V1's are kind of hit or miss, some people have great experiences, others dont have great experiences...
I've got Calibre K40 bluetooth Radar/Jammer. No wires, installs behind front/rear bumper, Jammer goes in lower grill under license plate or can be your license plate holder. Picked up radar 4 miles ahead. Downside....it's pricey....had a passport 8500 and liked it.
I have the V1 and calibre k40 with laser, both work excellent. I recommend the k40 for the stealth setup. all bluetooth setup. excellent range. The v1 works too without laser for less. both have about same range and sensitivity.
Depends on the state I guess like radar detectors. Had my laser detector go off and on 3x one day from a stationary police laser set-up on the side of the road. The last time he hit me I was probably 50 yrds. from him so I assumed he was trying to get a number and couldn't. As I passed him he just looked at me. I'm assuming my system did what it was supposed to.:M5thumbs: