Speakers are often clunky and material-intensive, but the Flexpeaker from the Industrial Technology Research Institute in Taiwan is about as sleek and simple as can be. The 8.5-inch-by-11-inch sheet is made from layered thin electrodes and a prepolarized diaphragm sandwiched between two sheets of paper. As you might imagine, thin speakers breed thin sound. The Flexpeaker’s frequency response is 500Hz to 200kHz…
There is a bit more on the speaker at fastcompany.com
source: fastcompany.com
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