Connection
usb, SIM Card, Built-in WiFi, Radio antenna, BT/WIFI antenna, 4G antenna, GPS antenna, RCA
Function
Stereo, FM Transmitter, Hands-free, Amplifier, APP Control, Built-in Microphone, Voice Assistant, screen display, Power Off Memory, Hi-Res Sound, Multimedia player, DSP, Wallpaper select, RCA Output, Optical/Coxial, Reversing, navigation