Ultimate safety wireless baby monitor set, coming with a high quality 2.4GHz wireless video receiver with 2.5 inch viewscreen plus 4 wireless cameras for keeping a very close eye on your baby or rooms. With long distance reception, easy and long lasting power sources for both the MP4 wireless receiver as well as the cameras, video and audio monitoring, USB OTG connection with the receiver, and the ease of setup and use that wireless sets can provide, this is one baby monitor security kit that will not fail to please. - TripleAAA