Remote Car Key for Mazda 2 3 5 6 8 M2 M3 M5 M6 CX-7 CX-9 MX-5 BGBX1T478SKE125-01 KPU41788 SKE126-01 313.8/315/433MHz 4D63 Features: 1. . This remote key is designed to replace worn or broken keys. 2. Suitable as a replacement for damaged keys or as an additional spare key. 3. Remote control frequency: 313.8 MHz, 315 MHz, 433 MHz. Includes battery. 4. Programming and blade cutting are required before use. 5. Must be programmed and cut by a professional automotive locksmith to match your vehicle. Most locksmiths offer this service at a lower cost than dealerships. How to confirm compatibility: 1. Your original key must be a smart key. 2. Your original key must have the same button layout. 3. Your original key must operate on the same frequency. 4. If all above conditions are met, this key is suitable for your vehicle. Note: Do not purchase if the chip type or key blade does not match your original key. It will not function properly.