System version: roid 10 RAMandROM: 2GB or 4GB or 6GBand32GB or 64GB or 128GB Display: Full HD 9inch 5-touch capacitive touch screen IPS screen Fast system boot: start the car access system within two seconds Split Screen Display (Split Screen Display) Run 2-Apps (such as Navigation, Youtube) simultaneously on the same screen Speed Compensated Volume Control (SCVC) – When you increased the speed, the volume of the head unit increased by a certain percentage when you slowed down, the volume decreased. This is intended to compensate f road noise Install countless roid apps from the Google Play Ste: Me than 1000-apps from the Google Play Ste can be installed, especially media or entertainment apps navigation apps from the "Commercial Vehicles" categy. Radio: Built-in high sensitivity FM or AM radio tuner with RDS or RBDS function ( radio station name is displayed when available), also suppts online radio app such as SXM Local Weather Widget: Pre-installed free of charge activated in our free launchers. Keep up to date with local weather fecasts, it is very useful to remind you of clothes safe timetable in case of bad weather. (requires internet access GPS signal, update every 30 minutes) GPS or Navigation: Built-in GPS receiver module with external GPS antenna Google Maps app is installed as stard GPS map. Users may need to download offline map data f a specific area f offline navigation. Other maps or navigation apps (Waze, Tomtom, HereWeGo) from the Google Play Ste can also be installed Compatible with Apple CarPlay or roid Auto, Mirrlink This double DIN car stereo system compatible with wireless Apple CarPlay wireless WIRED roid Auto (carletter app pre-installed costly activated) functions. You just have to use WIFI or Bluetooth or USB cable to connect to your smartphone to access your phone functions. Annotation: 1. If you use wireless roid car, you should set the AP b of the WLAN (hotspot) of your phone to 5 GHz. 2. The radio does not connect WLAN with surfing after wireless car play wireless roid car is connected, which is nmal. Since wireless car play wireless roid Auto occupy the radio's hotspot WiFi Hospot exclude each other, WLAN switches off automatically when using the hotspot. Screen Mirr: (Carletter app pre -installed enabled costs) enables you to transfer everything that is displayed on your phone to the screen, especially apps content that is not suppted by CarPlay roid Auto. Some video streaming services may not suppt Mirrlink.