4CH 433MHz Wireless Remote Control Switch 12V For Garage Door Light

Working Frequency: 433Mhz. Receiving Sensitivity: -104dBm. Modulation Mode: ASK. Self-locking: Connect 1 and 2 with shorting plug. Interlocking: Connect 2 and 3 with shorting plug. Learning procedures: A. Press the learning key, the LED lights.