●System Information：RAM-4GB , ROM-32GB；SoC Chip: UIS 7862 ARM Cortex Octa-Core (up to 1.8GHz) CPU with ARM Mali-G52 MP2 GPU, advanced 12nm manufacturing process. System Version: ATOTO AICE UI 11.0, which is developed & customized based on Android Q(10.0); ●DSP / Pre-Amplifier: Built-in Digital Signal Processor allows you to set precise equalization, signal delay, bass boost, bass filter. Preset 9 EQ Modes, and 32 adjustable frequency bands (16 bands for front and 16 for rear). Built-in Max 4*45W BTL Amplifier with RMS 4*24W (Vcc=14.4v, THD=10%); ●Bluetooth & Radio Tuner: Dual Bluetooth (BT1 5.0 & BT2 4.1). Bluetooth1 is Bluetooth 5.0 with SBC & AAC codec, and it supports HFP/HSP/A2DP/AVRCP/PBAP protocols; Radio tuner: Built-in high sensitivity FM/AM radio tuner with RDS/RBDS feature (and the radio station name will be displayed if available); ●GPS Navigation/GPS Tracking: Built-in GPS with Google Maps offers real-time online navigation, allowing you to track your location, get live traffic updates, and see accurate arrival times. For offline use, simply download maps for your area. You can also install apps like Waze or HereWeGo for more navigation options; ●Wireless CarPlay & Android Auto, Wired CarPlay & Android Auto, Wireless / Wired MirrorLink : It seamlessly integrates your smartphone with the S8's built-in display, allowing you to make phone calls, access your music, send and receive messages; CarbitLink app pre-installed, and it supports working with the latest iOS & Android devices (system firmware update may be required). Two options (USB /WiFi) are all available for connecting to smartphone; ●Fast System Boot - Start the car & access system within 2 seconds; Split Screen Display - Run a navigation map and another app (such as Youtube) on the same screen simultaneously; ●Digital Photo Frame option - Users can put memorable photos in the specified Gallery Folder and let them autoplay on S8's HD big screen with only a tap (or a hand gesture); ●Speed Compensated Volume Control (SCVC)- When you increased in speed the headunit volume increased a certain percentage and when you slowed down, the volume dropped. This is to compensate for road noise; ●Live RearView (LRV) - Now you can access rearview parking feature even if your vehicle in moving ahead with ATOTO AC-HD02LR backup camera. Inputs,Outputs & Slots●AUX Audio(L/R) /Video input; FCAM front camera video input; Rearview camera input (S8 can process 720P HD video signal. So you can connect a specific HD rearview camera to S8 for 720P video display); Separate Sub-woof Out (0.8v); For S8 MS, there is no Optical SPDIF Out, or Quick Charge interface; To connect to a headrest monitor, you need to get an extra ATOTO USB-to-HDMI or USB-to-RCA video output adaptor(not included).●2 USB interfaces for data communication, including reading USB Drive (read unlimited external storage devices, including portable SSD) & optional USB devices, and connecting phone for Mirror casting/CarbitLink or Phone Integration;●1 4G SIM slot for Micro SIM card. Vehicle Fit:●Most dashboard mounting frame suppliers from North America may provide a double din mounting frame with 174mm*98mm opening (Metra dash kit, PAC dash kit,etc). ATOTO is the first one to bring an Android 7inch car stereo with a minimum 172mm*97mm front panel dimension. An extra frame adapter is also included in the package to extend its size to 178mm*101.5mm; 1). Phone's cellular data 2). Built-in 4G Cellular Modem 3). Countless Android apps from Google Play Store and ATOTO pre-installed GPS Tracking App (TrackHU) 1.More than 1000 apps from Google Play Store are compatible with ATOTO S8 Series, especially media/entertainment apps and navigation apps in the category of "Auto & Vehicles". Very few app developers may specify devices/system environments that are allowed to install or run their apps, which results in the inability to install or run on any Android car stereos. Netflix is not compatible. 2.ATOTO is committed to delivering the best for our customers, constantly developing exclusive apps for Android head units. We're excited to introduce our GPS Tracking App (TrackHU) on S8. 3.TrackHU simplifies car locating with real-time vehicle tracking on a user-friendly map. Customize alerts, set geofences, access analytics, and view past data, speed, and distance. Enjoy 24-hour security, tracking your car from anywhere in the world. Activate GPS and network to access the TrackHU Manager via the companion app or interface provided. All the information you need is right at your fingertips. Stay tuned for more exciting developments as we continue to enhance your driving experience! 4). Versatile Connectivity - ATOTO S8 MS has lots of inputs & outputs customized for working better in a vehicle 1.Connect to a specific USB On dash 1080P DVR camera for video preview & playback; 2.Connect to a specific ATOTO USB TPMS tire pressure monitor system. When one or more tires are under-inflated, it will pop up a prompt warning on the S8 screen, and even emit a prompt tone as a reminder; 3.Connect to a rearview camera with CVBS & HD video signal out for safe parking;4. Connect to your Android / iOS smartphone via USB/ WiFi and using CarbitLink to cast what's displayed on the phone to S8's screen; 5.Connect to your iOS phone via USB or Bluetooth for running wired or wireless CarPlay and Android Auto, which seamlessly integrates your smartphone with the S8's built-in display and allows you to make phone calls, access your music, send and receive messages, get directions; 6.Connect to an OBD II Diagnostic Scanner / Engine Code Reader via Bluetooth; Compared with single Bluetooth, dual Bluetooth makes communication tasks between multiple Bluetooth connections much more balanced and stable. 7.Connect to Play Station game consoles, TV Boxes, and other devices with HDMI output by using ATOTO AC-HAV50 HDMI to AHD Video Converter, Support HDMI 1.4., to enjoy exciting games and stream your favorite shows just in the car. 8.Connect to headrest monitors by using ATOTO USB Video Output Adaptors (AC-AHV68: USB to HDMI adaptor; AC-AHV48: USB To RCA adaptor; Both are sold separately), and what is displayed on the S8 screen can be synchronized to headrest monitors. ●The Bluetooth 1 works as Bluetooth hands-free (call/answer) with A2DP streaming audio feature. Contacts/recent records will be synchronized once the smartphone is connected. Supports "Quick Search" and "Add to Favorites" for quick dialing! Built-in Noise Cancellation Technology helps suppress background noise and echo feedback in a hands-free call. You don't have to yell at the car stereo to talk with the other one. ●The Bluetooth 2 not only works as Bluetooth tethering internet but also allows to connect to Bluetooth gamepad(for kids in rear seats), Bluetooth OBD2, Bluetooth TPMS, etc.;Because of dual Bluetooth inside, the system allows users to connect up to 3 devices simultaneously(one for audio, two for data communication). ●The customized Bluetooth in S8 allows to wake up the phone's voice assistant (Siri, Google Assistant) via Bluetooth connection. So users can use a specific button on the screen, steering wheel, or ATOTO AC-44F8 wireless remote to send messages, make calls, and control music with your voice. Much safer, much convenient; Versatile Connectivity - ATOTO S8 MS has lots of inputs & outputs customized for working better in a vehicle 1.Connect to a specific USB On dash 1080P DVR camera for video preview & playback; 2.Connect to a specific ATOTO USB TPMS tire pressure monitor system. When one or more tires are under-inflated, it will pop up a prompt warning on the S8 screen, and even emit a prompt tone as a reminder;3.Connect to an OBD II Diagnostic Scanner / Engine Code Reader via Bluetooth; Compared with single Bluetooth, dual Bluetooth makes communication tasks between multiple Bluetooth connections much more balanced and stable. 4.Connect to Play Station game consoles, TV Boxes, and other devices with HDMI output by using ATOTO AC-HAV50 HDMI to AHD Video Converter, Support HDMI 1.4., to enjoy exciting games and stream your favorite shows just in the car. 5.Connect to headrest monitors by using ATOTO USB Video Output Adaptors (AC-AHV68: USB to HDMI adaptor; AC-AHV48: USB To RCA adaptor; Both are sold separately), and what is displayed on the S8 screen can be synchronized to headrest monitors. Notice: Optional parts for working with ATOTO S8 (Gen2) MS (sold separately): 1. ATOTO CA-AEC01 Compact 4 Channel Car Amplifier (47 watts RMS x 4); 2. ATOTO CA-AEC02 Plug-n-Play 4 Channel Car Amplifier (60 watts RMS x 4); 3. ATOTO AC-44P2 1080P On-dash DVR Camera; 4. ATOTO AC-44F8 Steering wheel Remote; 5.ATOTO AC-4450 Bluetooth OBD II scanner /Code Reader; 6. ATOTO AC-HD02LR HD Rear-view Camera; 7. ATOTO AC-UTP1 USB TPMS (Tire Pressure Monitoring Sensor); 8. ATOTO Video Output Adaptor (AC-AHV68: USB to HDMI adaptor; AC-AHV48: USB To RCA adaptor); Some of them must be connected before installation; 9. ATOTO AC-HAV50 HDMI to AHD Video Converter, Support HDMI 1.4. Compatible with Play Station game consoles, TV Boxes, and other devices with HDMI output. All optional accessories can be found here:amazon.com/atoto;