The Vevor 8-inch underseat car subwoofer is a slim powered audio system designed to add deep bass and clear sound without taking up much space. Its built-in amplifier delivers 400W RMS and up to 800W peak power for strong low-frequency performance in cars, trucks, SUVs, and RVs. The compact 3.0-inch profile fits neatly under most seats, while high- and low-level inputs improve compatibility with a wide range of factory and aftermarket audio systems. A wired remote control lets you adjust bass levels conveniently from the driver’s seat.