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  "path": "/2026/04/19/2026-green-powered-challenge-the-eternal-headphones/",
  "publishedAt": "2026-04-19T20:00:20.000Z",
  "site": "https://hackaday.com",
  "tags": [
    "contests",
    "green hacks",
    "energy harvesting",
    "noise cancelling",
    "piezoelectric film",
    "…read more"
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  "textContent": "Noise cancelling headphones are a great way to insulate yourself from the bustle of the city, but due to their power requirements, continuous use means frequent recharging. [Alessandro Sgarzi] has …read more",
  "title": "2026 Green Powered Challenge: The Eternal Headphones"
}