can be installed with a 2 buttons remote control It's for you to replace your old shell or the one that is broken. Just move the internal components of your old remote control to our new case. There is an anti -theft chip in your car key. When you change the key hull, you must remove the anti -theft chip into the machine key and put it in the new shell. This anti-theft chip can be used for emergency start works for the following models: for Mazda 5 for Mazda 6 for Mazda CX-9 for Mazda RX8 For Mazda Miata MX5 For Mazda CX-7 Material: Abs Color: Black Packaging content: 1 * Key shell Only the contents of The above packaging, the other products are not included. Note: The light shooting and the various displays can make the color of the article in the image slightly different from reality. The authorized measurement error is +/- 1-3cm.