For the hard of hearing there is a range of products with extra large strobes to visually attract attention. These models also have a mute button which is ideal for parents to avoid the baby being woken.
OR NEWBORN BABIES
A sleeping newborn baby is awoken by the sound of a visitor ringing the doorbell. A nightmare for young parents!
This can be easily avoided by using the Hearing Impaired models of MIP System Doorbells.
Each unit has a mute switch that disables the sound but still allows the visual notification from the very large strobe.