Check the listing for details. DC 12V 1CH Relay Receiver RF Transmitter 433Mhz Wireless Switch. Condition: New. Listed at 12.49 USD. Description:Introducing our DC 12V 1CH Relay Receiver RF Transmitter Switch – the ultimate solution for seamless remote control! Elevate your experience with cutting-edge specifications that guarantee top-notch performance and reliability. Key Features: Input Voltage: 12 V RF Working Mode: Superheterodyne Receiver Sensitivity: > 97 dB Transmitting Distance: > 100 m (open space) Decoding Mode: MCU Software Decoding Remote Storage: 20 Support Remote Type: EV1527 Learning Code Working Modes: Momentary, Toggle, Latching Time Delay (5s, 10s, 15s) Output Terminal: NO, NC, COM Dimension of PCB: 35 x 30 x 18 mm (L, W, H) Remote Control Battery: 2 x 3 V CR2016 Button Batteries Maximum Input Power: 250 V Remote Programming Control (Not Included): Clearing the Code: Push the learning button on the receiver 8 times to reset the codes. After clearing the code, remotes will need to be recalibrated. Momentary Mode: Contact us for detailed use instructions. Learning the Code (Toggle - Press remote button to turn on, press again to turn off): Press the learning key on the receiver 2 times; the LED will go off, indicating the learning state. Press the learning key on the receiver 3 times; the LED will blink 3 times. While the LED is on, press the remote button (A or B) you want to let it learn. After 3 seconds, the LED indicator will turn off, indicating successful learning. Package Includes:1 x DC 12V 1CH Relay Receiver RF Transmitter Switch