... Digital Baby Cry Detector\ 1.audio baby monitor,baby camera,video baby monitor 2.voice activated,50-80M remote distance -audio baby monitor,baby camera,video baby monitor ... or other sound,Receiver will be activated to sound imitated baby crying; Sound Level: 92±5Db; Frequency: 315MHz,433MHz for ... we promise to reimburse new products of the same quantity what's defective.But we don't take any item into ...