Hi Guys, as an installer of RailPro products it is great system. The current model will run on track or battery power. It has a built in rectifier. Is rated for a full 6 amps continuous and you get a 13 watt audio amp. Radio range in brass/diecast locos is 40' and plastic body is 90'. There are repeaters available if needed.
RailPro is a integrated 2.4Ghz radio control on board system w/sound for our trains. No extra boards or WIFI adapters needed. Each loco gets a module the size of a granola bar. That's it.