Have you ever had earphones that dont fit or fall out? Or did you know that conventional earphones can cause long-term hearing damage to your eardrums and you wouldnt even know it? Redefine your possible with bone conduction headphones, designed for endurance athletes. They will never fall out no matter what kind of strenuous exercise, enable you to do sports freely. Features Unlike traditional headphones, they will block your surrounding sound more or less, so you may expose in danger while youre running or cycling. Bone conduction headphones work by vibrations, sound transmits via cheekbone to your cochleas, which avoids hearing impairment compared to ordinary earphones. Specifications: Package Includes: