Yamaha MRX-70 is a sophisticated programmable remote control transmitter designed to make your life easier by controlling various audio and video components. It has a number of programmable keys that can be programmed to “learn” the signal patterns from other remote-control transmitters, allowing you to operate multiple devices with just one remote.

This remote control transmitter features two types of programmable keys: learning keys and preset learning keys. Learning keys can be programmed with any type of signal, while preset learning keys come pre-programmed with signals for operating Yamaha components that bear the "E=X5" mark. All keys are capable of the same functions and can be programmed and used according to your convenience and preference.