4ch 3G,GPS mini Car DVR with 3.5inch TFT screen,support 2.5 SATA HDD interface,4 CH video+2 CH audio, ... 3G,GPRS,are optional 4ch 3G,GPS ... mini Car DVR with 3.5inch TFT screen, ... mini car DVR with 3.5inch TFT screen,support 2.5 SATA HDD interface,4 CH video+2 CH audio,3G ...