EMFs (electric and magnetic fields) are areas of energy surrounding electrical devices. Studies show that traditional baby monitors that are less than 3.2 feet away from your baby's crib emit the same radiation level as a cell phone tower 500 feet away. EMF exposure affects babies by impacting sleep cycles, brain development and their immune system. This is why low EMF baby monitors are a safer alternative. These Modern Nursery approved low EMF monitors use low frequency levels to avoid radiation emission.