This completed remote key is an excellent replacement for your old one. It has  transponder chip as well as battery inside. After programmed and cut by the auto locksmith, it can work as a new one. Come and have a try! <br><br><strong>Features:</strong> <br>A perfect replacement for a lost or broken key card. <br>315MHz frequency unprogrammed - will require programming by auto locksmith with special diagnostic software. <br>High quality and completed key. <br>This is an after market replacement. <br><br><strong>Specifications:</strong> <br>Color: Black <br>Material: ABS <br>Interchange Part Number: For KPU41846 41846 <br>Product Size: 3 * 5.5 * 1cm / 1.2 * 2.2 * 0.4in <br>Package Weight: Approx. 30g / 1.1oz<br>Fitment: for 2004-2008 Mazda 3 <br>          for 2004-2005 Mazda 6 <br><br><strong>Package list:</strong> <br>1 * Remote Key