ThinkWare iVolt Xtra External Battery Subwoofer this subwoofer is comprised of

this subwoofer is comprised of elastic polymer and reinforced fiber to support the woofer during cone excursion for accurate and powerful bass

and 100 Hz Selectable 12dB/Oct HP Butterworth Crossover

7-inch marine speakers to dominate over conventional 6

Peak: 600W

2018 Harley-Davidson® Saddlebag Kits- owner's manual

ThinkWare iVolt Xtra External Battery Subwoofer this subwoofer is comprised ofIncrease the duration of the Parking Surveillance mode of your THINKWARE Dash Cam with the iVolt Xtra External Battery [BAB 95]. Allows dash cam to remain in Parking mode for up to 37 hours, or 27 hours with a rear cam added Fully recharged in 45 minutes while driving. Compatible with all THINKWARE Dash Cam models. The External Battery requires Hardwiring Cable (sold separately) installation. Hardwiring Cable is included in some dash cam bundles.