Features: The KEYDIY 754J Board offer double frequency flexibility (315 MHz & 433 MHz), enabling seamless compatibility with a wide ranges of vehicle key systems, ideal for professional automotive programming tasks. Crafted with PCB materials, this board ensures long lasting durability and stable performances while allowing users to manually between frequencies to specific car models. Designed for automotive technicians, 4S workshop professional, and car owners who require versatile frequency adjustments for multi brand key programming and diagnostics. Perfect for workshops, garages, or person use, this tool excelsior in programming smart keys for and other premium vehicles, streamlining complex automotive maintenance workflows. Its compact, lightweight design fits effortlessly into toolkits or bags, providing a portable solution for on the go diagnostics and key synchronization across diverse environments. Specifications: Component : PCB Length: about 65mm/2.56inch Package Includes: 1xProgrammer Board note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.