6 inch car audio subwoofer box 1.with strong power and embedded amplifier 2 ... /SD,MP3 3.USB/SD slot optional 6 inch cube car audio subwoofer box 6” subwoofer for cars,truck and motors: ... for cars’ detailed information:1)6 inch speaker with a tweeter make music sounded perspectively2)with trumpeter,support DVD,CD,Computer ... colorful flashing led,makes you cool enough. 6 inch thin car audio subwoofer box