"Ding Dong" sound announces the entering or leaving of visitorAdjustable entry/exit melodyHigh/low volume controlSensing distance up to four meterOperated by two AA batteries or 300mA/3V DC adapterProduct size: 123 x 32 x 63mm
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POWER VIEW INDUSTRIAL LTDVIP会员第12年
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"Ding Dong" sound announces the entering or leaving of visitorAdjustable entry/exit melodyHigh/low volume controlSensing distance up to four meterOperated by two AA batteries or 300mA/3V DC adapterProduct size: 123 x 32 x 63mm
