You must program the key fob to your vehicle for it to work properly. The color is black and it is suitable for use with dash cams, alarms, and security systems.
I brought my 2003 Nissan Altima used and it only came with 1 key and no key fob. Well I knew it was equipped with keyless entry, due to the fact that there was only 1 door lock on the drivers side, it had automatic locks & there was a security system. So after having my car for 3 years now, I decided to try this little gadget. And boy I happy I did! Also the instructions are very easy to follow.