The RM433 remote controller is an advanced version for 4-button RF with 433MHz. Designed with 8 buttons to perform various functions in running on different types of devices. Such as fan speed adjustment, brightness setting, etc. The simple and stylish look gives any surface a beautiful decor when it is stored on the wall. Strong compatibility. It can be paired to control SONOFF BASICRF, RFR3, Slampher, iFan03, D1, 4CHPPROR3, TX series, 433 RF Bridge and other devices supporting 433 communication protocol and other devices supporting 433 communication protocol(Fixed Code). Pairing with your devices is extremely simple and takes no time at all, simply press any button on the remote controller to pair with the device you need to control. Quick installation. Can match the base to be stored on the wall with double-sided 3M tapes or screws.