1 by one 1byone plug-in wireless doorbell chime system 150m [4 receivers+2 transmitters] 315/433mhz ± 0.5mhz 100-150m in the open air 80db 1×3v cr2032 battery(included) 110v us plug abs auto-learning

    1 By One 1byone Plug-in Wireless Doorbell Chime System 150m [4 Receivers+2 Transmitters] 315/433mhz

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    US $66.24
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    Specifications Of 1 By One 1byone Plug-in Wireless Doorbell Chime System 150m [4 Receivers+2 Transmitters] 315/433mhz
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