JOYING 1024600 Resolution 7'' Android 4.4 Quad Core Double 2 Din Car Radio Stereo Head Unit Autoradio Bluetooth/OBD/1080p/3G/4G/WiFi SRC Buttons:Switch Function for Radio, Music, Video ,AVIN 7" HD Capative Multi-touch Screen, 1024*600 Resolution. Android 4.4.4 RK3188 Quad Core, ROM 16GB. Built-in Bluetooth, Support to connect your phone for calls, music, Elm327 OBD2; Navigation function supports 2D/3D map,voice guidance, radio/music when GPS working; Support WiFi, 3G/4G hospot sharing from your phone Installation Size: 178*100mm; Comes with ISO harness (Not the special harness for your car). Please check the all product information carefully before purchasing. Steering Wheel Control Instruction: https://www.carjoying.com/Joying-blog/15.html Don't need to buy "2-Year Protection" from other Seller. We offer two year warranty of free replacing with defected parts. (not including shipping charges)