JBL Bags JRX212-CVR-CX Convertible Cover for JRX212 Convertible cover for JRX212 - specially designed to protect your loudspeakers A new, patent pending convertible design allows full functionality of speaker while inside protective cover. Roll away access panels cover front grille, rear inputs, and carry handles - Allowing full functionality while inside cover. Durable #10 nylon coil zippers