The second generation of the RTI RP-1 processor, the RP-4 is the perfect solution for reliable control over A/V and other electronic systems in single room installations such as home theaters, media centers, and bedrooms. The cost-effective RP-4 boasts an integrated 433-MHz RF receiver, IR control, voltage sense inputs, and relays; all in one compact package. Perfect for use with any RTI 433-MHz wireless interface, the processor also supports one-way control via the RTiPanel app, allowing users to incorporate their smartphones and tablets easily into their control system.* With the RP-4, A/V components and other equipment can be hidden away in a closet for a clean, professional look. The processor stores all system commands and macros for rock-solid reliability, providing a powerful alternative to IR repeater systems which can suffer from inconsistent performance.