The Q-POWER Single 12 inch Vented Ported Car Subwoofer Sub Box Enclosure QBOMB is a high-quality speaker enclosure designed for 12" subwoofers. The single vented port design allows for enhanced bass response and optimal performance. This product is compatible with Smart vehicles and comes in the model QBOMB12VL SINGLE. With a universal fitment, this subwoofer enclosure is a reliable choice for car audio enthusiasts looking to upgrade their sound system.