Earbuds, we can power it up
PNAS just got the patent for the button battery, which could be widly used in Bluetooth earphones. Thanks to its smaller in size but large capacity in power, it was accepting by earbuds manufacturer.
as far as we know, we're the third one that could produce this kind of battery, but we the one with best providing price. please contact if you are the earbuds designer.
earbuds, smart watch