How do you use the indoor ding-dong machine for doorbell products?

Answer: Doorbell products can be selected for use with dingdong machines in-house. When ringing the doorbell, the indoording-dong machine will also send a reminder, when pressingthe ding-dong machine matching button for a long time, untilthe ding-dong machine LED light, it shall press the doorbellbutton to complete the ding-dong configuration, and onedoorbell can be equipped with multiple ding-dong machinesfor simultaneous use.