American Sound Connection Dual 12'' Sub Box Ported Vented Subwoofer Enclosure Mdf Car Audio Stereo System Power Strips & Surge Protectors * **Premium Optical Glass:** Made

* **Premium Optical Glass:** Made with HD optical glass featuring 30 layers of multi-functional coatings on both sides

Long Battery Life: The built-in 1000mAh battery lasts approximately 10-12 hours

Designed with optimal power transfer in mind

scratch-resistant acrylic back showcases your iPhone 15 Pro Max's design and resists yellowing over time

* USB rechargeable battery for portable music playback

American Sound Connection Dual 12'' Sub Box Ported Vented Subwoofer Enclosure Mdf Car Audio Stereo System Power Strips & Surge Protectors * **Premium Optical Glass:** MadeOne Of The Best Way To Get The Maximum Bass Per Watt Is A Vented Enclosure! This Dual 12'' Enclosure Will Work With Almost Any Brand And Model Subwoofer(S) Just Be Sure To Check The Recommend Airspace Required. Unlike A Sealed Box The Vent Allows Air To Freely Move In And Out Of The Box But Is ''Tuned'' To A Set Frequency Range That Greatly Increases The Overall Output. More Air = More Bass! Our Boxes Are Made From Precision Cuts Of Mdf. They Are Then