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Wireless wifi voice doorbell home remote intelligent self-power generation
$30.86
Reliable shipping
Flexible returns
Type A: One for outdoor use + one for indoor use [a set of 2 silver] Type
B: One for outdoor use + 2 for indoor use [a set of 3 silver]
C style: one for outdoor + one for indoor use [a set of 2 gold]
D section: one for outdoor use + 2 indoors [set of 3 gold]
Other combinations can be combined, one for two, one for three, one for N, these can be matched