... slotSupport CA card( conditional access card) and CAM( conditional access module)Touch screen control with compatible head unites( roadrover, winca, foryou ... type femaleFrequency range174-234MHz 470-862MHzSignal level-80~0dbmDemodulationOFDMFEC mode1/2, 2/3, 3/4, 5/6, 7/8Guard Intervals1/4, 1 ... , 1/32HD SD H.264/ACMPEG-2 Digital&Full DVB CompliantMPEG-1 layer I/IIMPEG-2 layer II, MPEG AAC/AAC+Audio ...