The hole on the front of the volume to the appropriate. Design and calculate the best And a black thin wadding inside that prevents dirt and water into the speaker.
Ruth served on the volume accordingly. Design and well calculated and the fiber has a thin black inside. The act prevents dirt and water into the speaker's floor.
The pores on the page act tune for proper. The design and calculation of well.And the inside is also black thin fiber sheet inside. At the dirt and water into the speaker again.