This 7-inch Linux arm tablet has IP67 water and dust resistance, and we also have the MIL-STD-810G certification and 1.5m drop resistance to give you maximum protection and prevent vibration and shock throughout the case to maximize the life of the device. We are a manufacturer from China, this 7 inch car tablet android comes with DB44 interface extension cable that can connect to standard 4 RS232, 1 USB host, 1 Ethernet, 8 GPIO, 1 CANBUS, optional dual CANBUS, 1 power supply. Accessories also include power adapter, USB cable, hardware interface can be customized according to your needs. This tablet with 5 physical buttons, could be used as mobile data terminal police, with WIFI, Bluetooth, 4G, GPS, inbuilt Battery, Camera functions. Default with 2GB LPDDR4+16GB Flash Storage, could expand more. There is ACC Setting, which can realize the connection to vehicle ACC POWER. You may access to ACC setting and configure the screen setting and shut down setting when ACC disconnected, whether to set turn off the screen or tablet, or set the delay time to turn off.