The Spektrum 25A GROM SLT 2-in-1 ESC / Receiver combo is a specialized brushed electronic speed controller and receiver unit integrated into a single compact housing. 
It is designed primarily as a factory replacement part for ARRMA’s line of small-scale 4x4 vehicles.
This entry-level unit is plug-and-play and has no built-in programming adjustments. 
It is not compatible with the Spektrum SPMXCA200 smart programming card.