The Boifun baby monitor has a video camera and comes with a 3.2 inch HD screen for parents which has a rechargeable battery. There is a vox mode where the screen is blank and it will light up when the baby cries so parents can immediately see their baby but the screen is not on all the time draining the battery or disturbing their sleep. There is a night vision mode so you can see them even when it is patch black in their room. It lasts for 4 hours with screen on all of the time and up to 20 hours in the vox mode. There is 2 way talk back so you can talk to baby and you can play lullabies so that you can soothe them without having to go into their room.