I took this item from a car that I bought last year. Didn't know how does it even works but there are laser beams projecting from it so I suppose it works.
I personally prefer to COD in Air Itam, Farlim, Paya Terubong and Greenlane though other areas may be arranged. The price is slightly negotioble. Please send me a Whatsapp with a screenshot of the ad to prevent any confusions and a faster reply. Thanks!