4-wire Video Intercom System for 2-12 Apartments with Tuya APP, Classic Indoor Monitor with Handset

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[@silenthill1035]

I wish you had shown the wires more closely. I wanted to see how many pins and wires were there in the connectors exactly.

[@wind-thunder]

the title of my video has stated clearly about what system it is, obviously it is 4-wire, 4-pin.