... Professional after-sale service ISO9001 and ISO14001 18.5 Inch Widescreen LED Monitor with Ultra Slim Design Technical specifications: ZY Products Parameters ... Model: ZY-LED-18.5 ItemValueAppearanceColorBlack, Light gray, BlackKeyssource, up, down,+,-, menu ... MP3*1TVTV SystemPAL B/G(5.5MHz),I(6.0MHz),D/K(6.5MHz),NTSC M/N(4.5MHz)Image ...