Somfy Universal RTS Interface II, 16 Channel (1810872) Works with Control4, Leviton and more 16 Channels of RTS Control Can be controlled with: IR Remote Control (need Part No. 9015078 - Sold separately), Serial RS-232 protocol or RS-485 protocol 75 foot RTS range under optimal conditions For IR control need Somfy 9015078 IR Sensor for Universal RTS, sold separately on Amazon.