Products Highlights :> Support original car functions, such as: Steering Wheel Control, original car amplifier, original car rear view camera etc. Support original car information display> If you have any questions about model compatibility, please provide a picture of the dashboard, and we will answer your questions immediately on working days.***1. Options' System Version:> 188L Series: Android 11 OS, 4 Core, Cortex-A7 1.3Ghz, 1G RAM 16G ROM> PX5 Series: Android 11 PX5 System, 8Core, Cortex-A53 1.3Ghz, 4G RAM 64G ROM> Bult-in Carplay and Android Auto> Built in DSP processor> Built-in GPS navigation> Support WIFI and 4G LTE (optional)> Support CD player and car DVD> Support FM AM RDS Radio> Support Bluetooth> Support MirrorLink> Support Steering wheel controls> Support 2K 1080P video> Support Full AV output function (optional): It supports the playback of the front-wheel drive and sees the navigation map while the rear passengers watch the DVD films via the AV output of the device.***2. Chips:The radio use the best radio chip-NXP6686 and the best amplifier chip-TDA7851L.NXP6686 chip is the best radio chip in market at present. Good radio chip make radio signal stronger.TDA7851L is best amplfier IC in the market at present. It makes car sound quality be better than other radio type. If you need the best sound quality , DSP is digital amplifier system, which offers best sound quatity.