... \ 1.audio baby monitor,baby camera,video baby monitor 2.voice activated,50-80M remote distance -audio baby monitor,baby camera,video baby monitor-voice activated ... Sound 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,433MHz ...