[7 inch Double DIN Touch Screen Car Stereo] 7 inch capacitive screen designed. Universal standard double DIN size to fit most vehicles. [Phone Mirror Link Function] Mirror link via phone's USB line can synchronize with the built-in screen. Through mirror link, the car stereo will display the screen content of your mobile phone synchronously. Turn on the navigation app on your phone, you can use your car's navigation function while driving. [Rear View Camera] Our double DIN car audio receivers equipped with a HD camera, after connected to the rear view camera, you can see the video on the radio screen via the rear view camera when reversing your car. The 7 inch touch screen will automatically display reverse once you pull into reverse gear. Make your daily reversing safer. FM Frequency: 87.5 - 108 MHz Music Source: 3.5mm stereo headphone jack, mobile phone, SD card Micro-SD/TF card extension (max.): 32G Built-in equalizer: classic, jazz, , rock Freq. Response: 20Hz - 20KHz Bluetooth