Function
Hands-free, Amplifier, DSP, CarPlay, android auto, APP Control, Colorful lights, Steering Wheel Control, Voice Assistant, Power Off Memory, Stereo, FM Transmitter, Built-in Microphone, screen display, Multimedia player, Theme select, Wallpaper select, RCA Output, Optical/Coxial, Reversing, navigation
Connection
usb, Radio antenna, BT/WIFI antenna, 4G antenna, Build-in/External SIM card, GPS antenna, RCA