Speaker:40mm, round type. Power consumption: dc 12 v 1000 ma Dimension: 193*121*27mm Features: Infrared remote-controlling,catv hyper band,voltage inspectiing automatically and wide visual angle; Chinese and English osd menu,perpetual almanac and game functions; Curtainrawing-orientedly to display with logo and model no.while switch on/off.programs up to 255; 16:9 wide view and tow-way audio/video input; Pictupe reverted automatically while upside-down. Warranty:one-year free maintenance. Certificate:FCC,CE passed.