Keeping an eye on your children and pets. It is time to make lunch/ dinner but you can’t bring your kid to the kitchen. Wouldn’t you want to keep an eye on your kid? What if he/she is just learning how to talk, wouldn’t you want to here their first words? What if your toddler just learn to walk, would you want to respond to any falls. Well, you definitely will not hear them through walls.
CONs: