Replace your rear view mirror with this one and get a rear view mirror that does a whole lot more! It's 5" screen displays the backup camera and with the Android operating system gives you full functionality to browse the web and download apps right to your display! The monitor has built-in Bluetooth as well to connect to Bluetooth devices. With the display turned off, the monitor is fully reflective and acts just like a rear view mirror making it the perfect all-in-one device! ****Monitor comes with 8GB of built-in storage and can take microSD cards up to 32GB.