“Home” → “Sound around” → “Listen”: you hear what is happening near the child. It isn't a call — the child can't hear you. It isn't hidden: the child's phone shows a notification with a “Stop” button and the microphone icon. One session lasts at most 15 minutes; to keep listening, tap “Continue”. You can turn the screen off or open another app — the sound goes on with a visible notification. The sound is stored nowhere except on your phone, if you tapped “Record on my phone” yourself — “My sound recordings” (the “Music / KidPair” folder).
“Sound around” is part of the subscription. Without it you can try it once: 5 minutes, once per family. During an SOS listening is always possible and free.
Use it only for the child's safety. Other people may be nearby — respect their privacy.