This portable Bluetooth speaker is powered by light
 

Last month, Exeger and Mayht announced a partnership to create a portable Bluetooth speaker that's powered by light. At CES, they offered a glimpse at the prototype.

Swedish company Exeger makes Powerfoyle, a material that can turn natural and ambient light into power. Dutch startup Mayht, meanwhile, is behind a type of audio tech called Heartmotion. It claims to have reinvented "the core of the speaker driver" to allow for speakers that can be more than 10 times more compact than other models without sacrificing sound quality or bass output. According to TechCrunch, Mayht's drivers need less energy than similar audio devices, so solar cells are a seemingly sufficient power source for the speaker.

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