✓Applicable models and after-sales service: applicable to Mercedes-Benz A-Class W169(2004-2012): A150/A160/A170/A180/A200; B-Class W245(2004-2012): B160/B170/B180/B200; Note: If your vehicle has the original navigation or amplifier system (JBL, BOSE, HarmanKardon, etc.) you need to purchase an additional optical decoder box. 30 days refund, If you have any questions, please contact us and we will reply within 24 hours. ✓Powerful and rich functions:This screen has Carplay, Android auto, GPS navigation, FM / AM radio, Bluetooth, Bluetooth music, USB, multi format music player, 1080p video player, WiFi, APP download, backup camera,SUB and audio output, AUX audio and video input, external microphone,SWC steering wheel control. ✓DSP digital processing audio streaming:Built in DSP sound effect processing chip, It supports 6 sound settings Smart Bass, Balance, Emperor, 30-EQ, Loudness, Filter, equipped with TDA388 power amplifier chip, customize the best sound in different positions according to your preferences to meet your personalized needs,and bring you a pleasant driving journey. ✓Powerful hardware configuration:The latest Android 11 operating system, powerful 8-core processor, 2GB RAM, 32g ROM, HD 9-inch capacitive touch screen, resolution 1280 * 720, larger and clearer screen, give you wonderful visual experience. ✓Built in Carplay and Android Auto:This car stereo compatible with Wireless Carplay and android auto, allowing superior voice assist control and making it easier to access your phone functions including music, GPS navigation, calls, notification, messages and much more , while keeping your hands free for totally safe driving maneuvers!.