I'm another voter against the radar thing, it's just a piece of useless technology that the companies know that there are technology freaks out there who feel they got have all this technology on their bike, so they would rather go out and spend a $100 for a radar than $10 for a mirror that does more than the radar does! Plus the tail light is useless, 65 lumens during the day is not enough, if the sun is hitting that light motorists never see it; then at night they think 25 lumens is good enough? Oh my god, that's crazy in todays world of distracted driving, you need 300 lumens in the daytime to be seen and seen from a long ways off, at night you need 200 lumens min to stand out from the sea of other tail lights on cars. I have a 300 lumen NiteRider Omega tail light, and that's the only setting I use day or night.
So for $50 you get a way superior tail light than that radar thing, for another $10 you get a way superior method of seeing traffic than that radar thing, so for $60 you get a superior system.