... board, the U.S. search satellite navigation module, fast and accurate positioning, fast response, 4.3-inch touch-sensitive screen, vivid colors ... Bluetooth Rearview Mirror ultra low volume productionSD slot, support SD card (support 256M/512M/1G/2G/4G/8G), compatibility, data read ... , the data can be synchronized with the computer, update SD card data (such as Map data update)Audio Format: Wma9, Mp3 ...