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Contact Person Mr. sherry
minzhi, shenzhen, guangdong
nameï&frac*4;**-channels call system working volt (V)ï&frac*4; DC *2 basic equipment ï&frac*4;a host computerãa DC*2V power main function ï&frac*4;Call Area Display / voice prompt (recording doorbell, alarm) / volume adjustable / cycle inquiries Frequencyï&frac*4;**5/**3.*2MHz size of host computer(mm)ï&frac*4; **0***3**5 coding typeï&frac*4;learning code