In the hobby industry, few companies have built as bold and dynamic a reputation for quality products and technical achievement as Model Rectifier Corporation. More than a half century ago, MRC began its march toward hobby product leadership by designing model railroad train controls with a level of realism and power previously unavailable. Today, MRC's technology-rich Tech 6 and Prodigy DCC lead a long list of MRC engineered train controls and sound systems respected and enjoyed by millions of model railroad hobbyist around the world. In 2017 we advanced our leadership with the introduction of Prodigy WiFi. MRC users can now have Smart App control for their DCC systems using an iOS or Android devices. Backwards compatible, forward thinking, reasonably priced and easy to use. MRC is head of all other DCC systems, no one else offers this kind of tech! See it here: Prodigy WiFi