Review on 🔌 Wireless RF Relay Remote Control Switch, QIACHIP 12V 1CH 433Mhz Momentary Light Transmitter with Receiver (1 Relay) by Jeff Hall

I simply wired the Normally Open contacts in parallel with my garage door buttons. I paired the remote's "A" buttons to one receiver and the the "B" buttons to the other receiver. I now have 5 good quality-built remotes without having to replace my two vintage garage door openers.The direction were not clear on how to pair the remotes. Before installing them, simply reset each unit as instructed, then press the receiver's button once to put the unit into momentary mode, while next quickly pushing the desired remote's button. LED alerts to indicate successful pairing. Repeat the sequence for each remotes and WALA. Follow the same process for the second receiver and the other button on each remote.