wireless door bell,digital doorbell,door chime,factory low price,flashing while music sound,use battery,30-50M remote range,OEM ... wireless door bell,digital doorbell,door chime,factory low price,flashing while music sound,use battery,30-50M remote range,OEM ... Size: 9.0*6.2*3.3CMStandard Neutral Package: Blister + Card BoardMeasurement: 73.5*37.5*48.5CMQTY/CTN:120PCS;G ...