??This completed remote key is an excellent replacement for your old one. It hastransponder 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!  Features: A perfect replacement for a lost or broken key card. 315MHz frequency unprogrammed - will require programming by auto locksmith with special diagnostic software. High quality and completed key. This is an after market replacement.  Specifications: Color: Black Material: ABS Interchange Part Number: For KPU4184641846 Product Size: 3 * 5.5 * 1cm / 1.2 * 2.2 * 0.4in Package Weight: Approx. 30g / 1.1oz<br> Fitment: for 2004-2008 Mazda 3     for 2004-2005 Mazda 6<br>  Package list: 1 * Remote Key<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>