... car gps with 7" digital screen,support 16G USB/SD,real time stock market,good OSD,stable quality . 2 ... .Specificationscar gps with 7" digital screen,support 16G USB/SD,real time stock market,good OSD,stable quality .7" ... TV program functionSupport many kinds of multimedia formatssupport 16G, SD/USBsupport all kinds of cars' CAN-BUSHigh sensitivity,FM ... time stock market ,support 16GB U disk/USB/SD