Any NMRA compliant decoder, basically all the major manufacturers - Lenz, Digitrax, TCS, MRC, Atlas (Lenz), Roco, & NCE, will work. I think there are some limits to the Prodigy's use of the sound functions on Soundtraxx decoders, but the other functions should work. That's the good thing about the NMRA decoder standards. Now, don't try to mix and match throttles with your Prodigy. It will only work on Prodigy handsets.