кость проводимость наушники bluetooth наушники беспроводные наушники с микрофоном диктор для телефона

we offer discount for large quantity. welcome to contact with us! [bone-in-ear bluetooth headset] really do not need to be in the ear, long-wearing does not hurt, and can not be shaken off wildly. it shocks bones instead of speakers and shocks your tory nerves. [thousand yuan sound effect] 5.0 chip brings more cutting-edge technology, transmission is farther, more robust, can be synchronized, and built-in dsp chip, speaker and cavity are made of acoustic patented technology [12 hours of conti