Beltronics 980. I think it out performs the V1 and this model is 2 years old now. Typical different sounding beep alerts for the different bands (x, ka etc). Good detection from rear also....however it does not tell you that the alert is coming frorn front or rear.
Has anyone used one of these ? It is a radar reflector/blocker.
http://www.beltronics.com/lp905.html