... distance,alarm upon baby cry,use battery,factory offer baby monitor,baby cry detector,baby camera,voice activated,50-80M remote ... distance,alarm upon baby cry,use battery,factory offerSPECIFICATIONS:•Whole Set ... will be activated to sound baby crying voice.Quite sensitive.•Loud Volume:85-95dB;•Use 2 "AAA" battery for Remote Transmitter( ...