SONOFF RF-REMOTE remote control, RF 433MHz

Remote control Sonoff RM433R2, 4 buttonsFeatures:The remote control operates at a RF frequency of 433 MHz. It has 4 buttons, which can control 4 different Sonoff devices. Suitable for Sonoff RF, Slampher, 4CHPRO, RF Bridge, TX series wall switches and other devices that support the 433MHz communication protocol. Small and convenient, the size of a keychain. Note: the battery is purchased separately.Technical specification:Compatible with: Sonoff TX series, RF Bridge, 4CHPRO, etc. Frequency: 433MHz. Control distance: 20-30m. Number of buttons: 4. Supported battery: 1x 12V / 27A (battery not included). Material: ABS. Safety class: V0 (fireproof). Dimensions: 50mm x 30mm x 12mm. Weight: 27g. Color: black/blue.Warranty:24 months