This baby monitor system in offers great value for every parent who wants a basic sound monitor. You will be able to hear every sound baby makes on your parent unit. It also features a soft and soothing nightlight for the nursery. If you are like most moms and dads, you take advantage of the moments baby is sleeping to get things done around your home. So carry the rechargeable Parent Unit with from room to room for peace of mind whatever you are doing. It operates on batteries or main power, and it automatically converts to battery mode in the event of power failure.