It is more than just a soundproof booth. It is flexible and movable Soundproof Silence Booth satisfies your need of creative space design. It is made of aviation aluminum, carbon composite panels, and tempered glass used for compartment of subway trains.Only one type of fasteners is used for assembling. Air in the booth is 100% refreshed in every three minutes. Widely used in reception, phone booth, meeting room, office, recharge, etc..