Wild Yet Genius: Japan’s Most Unusual Inventions

7. Quiet Karaoke

What it is: A funnel-style microphone that mutes your song Invented: 2019 Average Price: $81

Prodiea’s Utaet mic cuts volume by 70 percent, letting singers rehearse anywhere without disturbing neighbors.

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Twitter.com, @lakey, and Silent Karaoke

Great for confidence building and stress relief, it is the perfect warm-up before a night out.