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

This PCB works as a replacement for the Prox Key for any Mercedes IR "Fobik" Style Prox Keys from 1997 to 2015 as long as they are FSB3 Systems.

• Supports Keyless Entry + Push Button start functions
• Prox key for vehicles with FBS3 system W204, W207, W212, W164, W166, W221
• Supports exchange of frequencies 315 Mhz and 433 MHz
• No need to insert a battery when writing data via infrared

Compatible with the following:

• 1997 -2015 Mercedes W204, W207, W212, W164, W166, W221 with FBS3 systems