Valentine One doesn't offer a laser shifter.. the one I used is the ZR3 and the best place to get it is EBay.

The $399. Valentine one is just the radar detector, the upgrade thing is very cool. Every upgrade to their software you can send yours back and get a new one, I cannot remember if the upgrade is free or $40.. but you obviously would not have to pay for a new detector and you stay up to date.

The ZR3 shifter is directly compatible with the Passport 8500, which is the only reason I switched. Once you install the shifter it plugs right into the 8500 and works off of the unit. If you used the ZR3 with the Valentine one you would have two seperate units, but the unit for the ZR3 is not that big at all and easily consealable.