... baby camera,audio baby monitor,315Hz/433Hz optional,use battery,easy use,sound activated,factory offer baby monitor,wireless baby camera ... ,audio baby monitor,315Hz/433Hz optional,use battery,easy use,sound activated,factory offerSpecifications:Remote Range:50-80M (in ... for option;Available Working Temperature: -20°C - +50°C;Use 2 "AAA"Battery for Transmitter;and 2 "AAA" Battery ...