World’s First Ultra-Thin Waterproof Piezoelectric Speaker

If you’re wandering, can I listen to music under the shower from my phone, the Japanese company Murata will make your dream come true. They created the world’s first “ultra-thin waterproof piezoelectric speaker, with a thickness of only 0.9mm.

You know, the waterproofing of sound output holes in speakers is a particulary significant issue. So manufacturers have to cover the sound output holes with waterproof sheets. However, this solution often led to the degradation of sound quality, while adding excessive costs. The new Murata piezoelectric speakers don’t use any cover sheets and eliminate the costs for these materials and avoid reducing the sound quality. Pretty nice, isn’t it?

Murata ultra thin Waterproof Piezoelectric Speaker

The new speakers are  designed for use in portable devices such as cell phones, PDAs, digital cameras, they are now available available for 250 Yen ($2).


  • The ultra-thinness (0.9mm) of this product contributes to greater design freedom.
  • This product achieves IPX7 grade waterproof protection without using any waterproof sheets, which:
    • allows for the elimination of waterproof sheet material costs
    • allows for the elimination of waterproof sheet application costs
    • eliminates the possibility of sound degradation resulting from waterproof sheets
  • Since no magnets are used, there is no possibility of malfunctions caused by iron sand, or electromagnetic effects on magnetic sensors

Source: Engadget, Murata

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