Copy 2 different brands to RMC-166HS via HCD-900

1. Copy 1st and 2nd buttons of DOORHAN to 1st and 2nd channel of RMC-166HS; copy 1st and 2nd buttons of AMP to 3rd and 4th channel of RMC-166HS 2. Program individual button of RMC-166HS to the receiver before use. **Please volume up so that you can hear the "click" sound from the relay to confirm the remotes work with the receiver.** ............................................................................................................ Our Facebook:   / remocon.hcd900   Our website: https://www.remocon-tw.com/ Our Taiwantrade website: https://remocon.en.taiwantrade.com/ ............................................................................................................