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Check out these cool sunglasses with built-in bone conducting headphones | Android Authority
From the horse’s mouth
Zungle
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In the early 1980s, an electronics company tried out a common application for bone-conductivity personal audio technology by selling to a mail-order gadget-supply company and to Radio Shack (Tandy) an AM/FM stereo headphone radio that implemented this technology. This radio, known as the “Bone Fone” and powered by 4 AA batteries, dropped around your neck like a shawl and used bone-conductivity technology to bring your favourite broadcast’s audio to your ears. You were able to hear your music privately through the sound being transduced through your neck clavicle bone to your ears.
It was found to be heavy but the technology has resurfaced in another application that would be seen to be popular. This time it is a pair of sunglasses that use an integrated Bluetooth headset that exploits this technology. These Zungle Panther sunglasses, modelled on the Oakley Frogskins, don’t require you to wear headphones or an earbud to hear your music or caller due to this technology. Rather they use your skull bone as the transducing surface.
These glasses link to your smartphone using Bluetooth 4.1 technology as a way to save battery runtime for both devices. They also implement a jog wheel to allow you to control audio playback as well as implementing a noise-cancelling microphone when you make and take calls or ask something of Siri, Google Now or Cortana.
For their power, the bone-conducting Zungle Panther glasses implement a 300mAh battery that uses the same microUSB charging connectivity as most of the current Bluetooth headsets.
Because of what they do, they may be considered to be bulky like a set of 3D glasses used for watching a 3D movie at the cinema but they weigh in at 45g. They were found to earn their keep for cyclists and other road users who want to keep their ears open to hear for traffic.
There is actually a Kickstarter campaign to get the bone-conductivity glasses idea off the ground with a starting price of US$99.
