All I can say is that the replacement key fob I bought for $6 - twice on ebay - was a good replacement for the original single key fob case that came with the car that I bought. I replaced the batteries and have a good quality "shell" for the electronics and flip key. I'd say don't be concerned with the panic button. The whole shell is what you will be investing in.. Look at the feed back and make your purchase accordingly.. If as you say the key doesn't retract fully, look for another vendor. Mine works perfectly in that regard..