Sonoff RF BridgeSonoff RF Bridge R2 433 The Sonoff RF Bridge R2 433 takes your smart home to the next level with the integration of RF. By adding the Sonoff RF Bridge 433 you can easily customize an large amount of RF remotes to control large aspects of your life. The RF Bridge 433 can convert most of the 433. 92MHz RF Remotes into Wi Fi wireless. With the programmable ability of the RF bridge to remotes via the ewelink APP you can control your new or existing Wi Fi