433 MHz Smart Wireless RF Remote Control Switch Mini Small Relay Circuit Receiver Module DC 3.7v 5v 6v 9v 12v 1 Channel Battery Power with ON Off Transmitter Latching Controller
Dorma WS/RFT-1 433 SQ4 Wireless Wall Switch
eMylo Smart RF Motor Controller Switch Relay Wireless Remote Control Switch 12V Motor Switch 433Mhz for Rolling Door, Electric Curtains/Locks, Water Pump, DC 5V-24V with 2 Transmitters (1 Pack) - - Amazon.com