is that the same as VW keys???

accdg to some website, The VW security system requires a transponder-equipped key to start the car. A transponder is a small electronic chip embedded in the head of the key. When the key is turned to the "start" position, the car emits a small burst of radio-frequency energy. This energy powers the key and instructs it to emit a reply to the car. If the code in the reply doesn't match the code asked for, the car will not start, even though the ignition will turn and the starter operates.