TOFNK No Chip Keycard Keyless Remote Key Shell Case replacement for Mazda Rx-8 Mazda Cx Rx Mx Mazda Miata Mazda Mx-5 Miata 4button+blade (1) work with MAZDA cx rx mx 4BUTTON+BLADE, shipping time is about 7-15days Pls kindly check out your key blade type and button position before buying, make sure your remote key case looks exactly the same with this case. This item isn't a remote key, it's just a remote key shell. NO interior (remote/electronics/ignition or transponder chips) unit inside. The key is uncut and needs be brought to a locksmith or a dealer to be cut to match your car. Cut the key blade, take the internal electronics (include immobilizer/transponder chip) from original remote and place them to our key shell, then it is OK! There's no programming needed.