Sound detector of bone conduction type

● Sound detector of bone conduction type

 ▷ A product that simultaneously has the function of a hearing aid + earphone that compensates
    for inconveniences such as echoing, ringing, and wind noise
 ▷ Apply noise cancelling technique
 ▷ Aging friendly design that can be used as a fashion item
 ▷ Implement function to connect with smartphone using Bluetooth communication