Bone Conduction Headphones insoles the inner wall of the

the inner wall of the cup rotates automatically

1x Animal 36 blocks

Loading capacity：300 kg

no need for other replacement tools

Closure Type: Slip On

Bone Conduction Headphones insoles the inner wall of theUnlike 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.