Car Digital TV Tuner with 2 Tuners MPEG4 MPEG4 for HD MPEG2 for SD Input frequency: VHF 177.5MHz - 226.5MHz Car Digital TV Tuner2X ... ,layer and 2, MPEG-4, HE-AAC4 Way Video Output:Output Resistance: 75 ohmOutput Voltage: 1.0`2.0mVp-pAudio ... external powersupply input jack, USB upgrade socket, Componet output interface, High-definition output interface.Applicable Power Supply: Car storage battery (12V) ...