XTRONS Quad Core 7" Android 5.1 Car Stereo Multi-touch Screen Radio DVD Player GPS 1080P Video Screen Mirroring OBD2 Wifi CANbus Built-in Tuner Tire Pressure Monitoring System for BMW E53 X5 E39 Android 5.1: 64-bit Operating System, Tire Pressure Monitoring System Quad Core: 64-bit CPU Processor 1024*600: Superior Visual Enhancement&1080P: Super-Clear Video OBD2: Diagnose Your Car Status&Screen Mirroring: Smartphone Entertainment Sharing Built-in WiFi: Access to the Internet Conveniently