Baby monitors have changed a lot from the simple radios used in the past. Modern advanced monitors use many different types of technology to help parents keep an eye on their baby's health and safety.

Some of the most common features include:

• Video and Sound: High-definition cameras that can see in the dark and microphones that only pick up a baby's cry while ignoring background noise.

• Health Sensors: Some monitors are worn like a sock or clip onto a diaper. These can track the baby's heart rate and oxygen levels.

• Safety Alerts: Advanced software can detect if a baby has rolled over onto their stomach or if their face is covered by a blanket. It can then send an immediate alert to a parent's phone.

These monitors provide peace of mind by giving parents more information about how their baby is sleeping throughout the night.