NAKAMICHI NA400 CD DVD MP3 WMA USB AM FM AUX IN Car Stereo Player 3V Mono Subwoofer line output (level control) 3V Mono Subwoofer line output (level control) System : DVD/CD Audio/MP3 System / Video Signal Format : NTSC/PAL 40 Keys Remote Control (Battery included) 1Din Standard Universal Size Fast music file browser up/down / USB Flash Memory : USB 1.1 & 2.0 Compatible