[306] How are your remote controls?

hi.
my remote control isn't the original it seems it belongs to a brand called Valeo, even the circuits have their name on it and that is the only remote key I've got. I tried many things to sync that key with the car, but unsuccessfully.

so I was just wondering, how are your keys? 1 button or 2 button? can you post a picture of the remote key?
I searched online but I couldn't find my specific key, only the 2 button key (a big and a small one), but my key only has 1 big button and I don't know if it's infra red or RF, it just got a big button, a white plastic that lights red and something like a lightbulb next to the key.

my car is a 1998 306 1.8L diesel engine, no turbo.

Edit: both that remote key and the manual key have something like a little electrical thingy, looks like a square. I was told that was related to the immobilizer but my car doesn't even has an alarm... also, on the remote key, that little piece doesn't connect to anything.