The product is derivative of Samsungs C-Lab.
Both of these devices with other similar spin-offs are currently being showcased in Las Vegas at CES 2018.
Although, the main motive of the gadget is not listening to music but to have a phone conversation.
The Sgnl works in few steps.
It transmits vibrations from the users wrist to their fingertips via their bones.
Yes, it transmits through bones.
It means there wont be any need to take out mobile phones from the pocket.
The Sgnl technology not only can make calls but do other important stuff as well.
Sgnls strap can be affixed with any traditional watch or wrist band.
It can store up to five contacts through which phone calls can made using the basic Sgnls interface.
Although, later its assumed to get updated and store more than five contacts.
This gear is compatible with both Android as well as iOS and is water resistant.
Source:SgnlviaEngadget
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source: www.techworm.net