New button battery dyes children's mouths blue if swallowed
7News Just In - A podcast by 7NEWS Podcasts
They send 20 kids to hospital emergency rooms every week but now, one manufacturer believes it has invented a button battery that offers much-needed peace of mind. It is made with technology that turns the mouth blue to give parents an early heads up if their child has ingested one.See omnystudio.com/listener for privacy information.
