Specification RM433R2 Model RM433R2Color WhiteRF 433MHzMaterial PC V0Number of keys 8Dimension 87x45x12mmPower Supply 3V button cell x 1 Battery model CR2450 Base Model RM433R2 BASEColor WhiteMaterial PC V0Dimension 86x86x15mmFeatures 1 Enhanced RF Control Offers a farther distance of RF control with its advanced smart chip for better performance 2 Versatile Functionality Features 8 buttons that can adjust fan speed set brightness and control various other functions across multiple devices 3 Sleek Design The smooth surface and modern aesthetic make it a stylish addition to any wall 4 Broad Compatibility Compatible with multiple SONOFF devices like RFR2 RFR3 SlampherR2 iFan03 iFan04 D1 TX series RF BridgeR2 and other devices supporting 433MHz communication protocol 5 Easy Pairing and Installation Simple pairing process by pressing any button with mounting options including screws or 3M tapes for easy installation Package Include Only RM433R2 1x RM433R21x Manual Only Base 1x Base RM433R2 Base 1x RM433R21x Base1x Manual