It's a cobra radar detector which plugs into a cigarette lighter it has different settings for city and highway driving the chirping will get louder as you get closer to the target, you can mute it so it will only flash and it has an intelli-mute button which i never used but i think it will only go off if its actually a cop it picks up many different forms of signals (ex: x, k, kg. v, s...) and a different number will light up depending on the vehicle. The night i got it i drove from atlantic city to my home about 60 miles away in about 30 minutes, which was probably not the best idea but it made me more confident riving up to the mountain at higher speeds definitely and it never failed. All this hype makes me think i should just keep it..Its still going for $50 so let me know if you want it. Ill post pictures later today.
Peace