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shenzhen jinyjia electronics

All Products >> audio door phone

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audio door phone
audio door phone
Specification: 210*79*45mm
Detail: Visitor press bottom "room"on outdoor phone,then, 4 times"Ding Dong"clank.Any ring tone won't last for more than 60 s, will turn to close after that.Need press bottom "room" again.Host pick up the indoor-unit to talk to the vi...
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