Child voice navigation works exactly the same as any other voice navigation app other than when you drive near schools or day care centres where there are lots of children the regular voice changes to a child's voice.
It has been demonstrated that listening to a child's voice has an automatic effect on all drivers to slow down take more care and pay attention.
IF have made the Child Voice Navigation App free to download.
'Slow down GPS' - IF Insurance - Sweden
'Slow down GPS' - IF Insurance - Sweden