The digital devices - reminiscent of the 'Omnioculars' used by Potter to watch Quidditch - could revolutionise birdwatching, horse racing, cricket and even opera.
Source: http://www.dailymail.co.uk/sciencetech/article-2028021/Harry-Potter-time-freezing-binoculars-offer-instant-action-replays.html?ITO=1490
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