Bone Conduction Headphones Color:red 3'' diameter x 2

3'' diameter x 2

AUTOMATIC LIGHTING - When the block lamps are stacked together

Wear overnight and burn calories as you sleep

Keep it out of kids under 5 years old

rust-proof

Bone Conduction Headphones Color:red 3'' diameter x 2Unlike traditional headphones, they will block your surrounding sound more or less, so you may expose in danger while you're running or cycling. Bone conduction headphones work by vibrations, sound transmits via cheekbone to your cochleas, which avoids hearing impairment compared to ordinary earphones. Bone Conduction Headphones are lightweight and they will never fall out no matter what kind of strenuous exercise, enable you to do sports freely.