Comes with Android 6.0 Marsh-mellow which is the newest OS. It is brand new, I only hooked it up to make sure it works and tested the functions. I don't want to sell a defective unit. I am only selling it because my gf purchased the exact same one. Now I have 2! $325 shipped to you 2-3 day! contact me: 805-464-6480 name is Steve! *System and Technical Parameters CPU: Rockchip PX3 Cortex A9 Quad Core 1.6GHz Audio output: 4*50W max 8 inch Screen Resolution: 1200*600 Cold Boot time: about 25-30s Capacitive Touch Screen (5 points) & Image Brightness /Contrast/ Color Adjustable OSD Language: English, Russian, Spanish, Turkish, Portuguese, Arabic, Chinese, Italian, German, French, Thai, Hebrew, Danish, Hungarian, Dutch, Polish, Finnish, Greek, Bulgarian, Belgian, Swedish, etc. DVD compatible formats: AVI/DVD/DVD+R/DVD-R/DVD+RW/DVD-RW/VCD/MP3/CD/CD-RW/JPEG etc. Mirror-link: Android Phone Mirroring: to connect your android phone by USB. Airplay for iPhone 6/6 plus/5/5c/5S/4/4S via wifi connection. GPS navigation: Built-in GPS navigation, support Google maps, Waze, Sygic and other maps Voice Guidance&3D Map&POI Display: Yes Dual Zone Function: Music/Bluetooth can working at the same time While GPS working. Radio: 530-1710 (America)--AM 87.5-107.9 (America)--FM RDS Radio: Yes Wifi/3G/OBD2/Cam-In: WIFI: Built-in WIFI Module to to search and connect to any free WIFI hotspots. 3G: Support WCDMA/CDMA2000/TD-SCDMA 3G bandwidth OBD2: Display Real-time data and trouble codes from vehicles computer. Cam-in: Support RCA type reverse camera input. DVR Built in USB port for USB Camera input for video record. Save in micro SD card from the Map SD slot. Steering Wheel Control Change the track, volume, etc. conveniently without taking your hands off the steering wheel.