Main Description: Keep original CD of the car. High stability,low repair rate. (1)Avoid problems caused by DVD mechanism.(2)Keep original radio.(3)Avoid running in high temperature to protect IG. Best watching angle in the car. Easy installation,fully DIY products. Our products do not destroy the original car protocol to avoid higt risk occurs such as SRS,ABS,ESP,etc.safety equipment invalid at the critical time. USB Music Controlled by ORIGINAL CAR RADIO Speaker. GPS & Bluetooth works alone with itself speaker or original car speaker. Fuctions: CPU 800Mhz,256MB 7"/8" 16:9 digital TFT LCD (800 x 480 pixels High Brightness Screen 400cd/m2) Touchscreen control with dynamic graphic user interface Built-in Bluetooth with A2DP,supports hands free Play music by Bluetooth Built-in navigation USB supports multi-format such as MP3.MP4.MP5.AVI.WMV,WMA,MID.JPG Supports E-book function Special PIP function:Picture in Pichure,the primary and secondary program can be switch by a button,and the secondary menu can be moved by your finger. Vehicle Car DVR Record function Logo and background picture customizable Reversing camera input 2-zone function,Play music and video while navigating .the two program can be setting differently.(USB DISK 32GB,HDD 160GB) DVR : device can automaticly turn on reverse camera video input when reverse shift is selected, and record video on USB instead of Front DVR camera.