ProM arrived yesterday and when I unboxed it I was really surprised how small and light it is. This is my first detector so don’t have anything to compare it to, but wow, what a compact package. Mounted it on the windshield with the supplied hardware and it seems pretty secure. Left the settings at the default pre programmed ones. On the morning commute it stayed quiet on the highway portion, and gave one small false chirp on the city leg that finishes my drive. This thing is pretty slick. Know it was only one trip, but I was concerned about constant noise, and went with the ProM based on what I read here about how quiet it is.