The Lionel Legacy Tacoma Rail SD70 Ace I received a couple days ago is equipped with the Bluetooth operating software. So time to experiment. Got my Apple smart phone, pulled up the App and connected to Lionel's Bluetooth operating system. All went well, connected to the loco on first attempt. Been running the diesel for 2 days with my phone which is kind of cool but is somewhat cumbersome compared to my DCS controller with MTH locos.. I would think if I had the Legacy system I would also prefer that controller vs the smart phone. So, after a couple days using my phone, I will be running the Tacoma Rail SD70 with my TMCC controller.