The earphones are softly secured between thin dome-shaped silicon and the lid. The cable is wound around the circumference of the case, while the plug is stored in a separate space to the earphones on the bottom of the case. With cases that store earphones securely, damage to the housing is avoided, but the cable being wound and bent in the same way each time means that wire breakages will be more common. With this structure, the conflicting requirements - consideration for damage to the earphones and ensuring that the position at which the cable is bent is not the same so as to prevent wire breakage – are both satisfied.
Size (outer dimensions): approx. 85mmφ