Xhorse Proximity Smart Key PCB (315 / 433 MHz) for Mercedes IR "Fobik" Style – FBS3 Systems

This Xhorse Proximity Smart Key PCB is designed for Mercedes-Benz vehicles using the IR "Fobik" style key and FBS3 systems from 1997 to 2015. It supports both 315 MHz and 433 MHz frequencies, offering full compatibility with a range of models.

Product Features:

FBS3 System Compatibility: Works with Mercedes-Benz FBS3 chassis, including W204, W207, W212, W164, W166, and W221 models. Smart Key Functions: Supports Keyless Entry and Push-to-Start functionality. Dual Frequency Support: Easily switchable between 315 MHz and 433 MHz frequencies. Infrared Programming: No battery required when writing data via infrared (IR). Reliable Replacement: A high-quality solution to replace or upgrade original proximity keys.