?Customer Service and Technical Support?We offer 30-day Money-Back, 12-month Replacement, life-time Technical Support. Please feel free to contact us if you have any questions, we will reply to you within 18 hours and help you solve the problem. ?AHD Rear View Camera Input?This car stereo with backup camera supports rear view image input. AHD high-definition image,170-degree ultra-wide angle,waterproof design.The screen automatically switches when vehicle is reversing, improving safety. ?Radio with Bluetooth and FM/RDS?You can answer/make calls and be hands-free without distractions via bluetooth.Our touchscreen radio built-in clear mic and equipped with external mic jack in RCA cable.Bluetooth wireless audio stream allows you to enjoy a superior music listening experience!FM radio with 18 preset station,you can listen to your favorite programs at any time. ?Android Touchscreen Car Radio with GPS and Wifi?This Bluetooth radio has a built-in offline map APK "Here We GO". When connected to wifi, you can download offline maps or use online maps wherever you want. You can also download many other apps in the app store, such as youtube, etc. Watch the video online during the break. The 9 inch high-definition large screen android head unit will give you a good visual feast and make your driving journey colorful. ?Stereo Configuration & Applicable Car Models?Android system,9 inch 2.5D 1080P HD touch screen,1G RAM+16G ROM,offline/online GPS navigation,Wifi connection,RDS/FM radio,two USB,7 EQ adjustable,with waterproof HD rear view camera,support carplay Android auto,steering wheel control. Compatible Models: For Mercedes Benz ML-Class (ML300/ML320/ML350/ML450/ML500/ML63 AMG)(2005-2012),GL-Class X164(GL320/GL350/GL420/GL450/GL500)(2005-2012). ?Wireless CarPlay and Android Auto?Android car stereo with wireless/wired apple carplay and Android auto(via bluetooth or USB cable),you can access to calls, send and receive messages, and enjoy music etc.You can also wake up siri voice control.