audio baby monitor,baby camera,video baby monitor,baby care detector,50-80M remote distance,use battery,factory offer,OEM & ODM audio baby monitor,baby camera,video baby monitor,baby care ... Activated: place Transmitter near Baby,Receiver near or together with Mom/Dad.Once baby is crying or other ... sound,Receiver will be activated to sound imitated baby crying;Sound Level: 92±5Db;Frequency: 315MHz, ...