Note: 5188/5188C: 5.1 inch IPS 4168A: 4 inch Interpretive videos in 5 languages (5188) 51881 din Mp5 Player Touch Car Radio Bidirectional Interconnection RDS AM FM 4-USB 5.1 Inches Support Android 10 Mirrorlink Bluetooth * Specification Screen size: 5.1 inches Material: Hardware Plastic Screen: IPS screen Button lighting: 7 colored lights Bluetooth version: 4.2 Speaker output power4*45W Features FM/AM multi-channel radio Android/ios bidirectional interconnection Whether to bring the remote control: with supportVoice steering wheel control Support RDS/AM Support rear view Support:Mirrorlink (Support Android 10) Support external microphone Support connecting front camera, but need to switch video input Resolution:1120*480 Front and rear 4-USB interface Front and rear AUX interface System: wince *Mobile Internet *FM frequency modulation function: Yes *Bluetooth function (Bluetooth answer the phone, Bluetooth music) *Caller ID *Support large-capacity SD card, U disk and other memory playback *Support AUX audio input * Electronically tuned stereo radio *Multiple circuit protection test (overload, overvoltage, short circuit) *One key mute *Smart Voice Product size: 188mm*116mm*58mm Support multiple languages: English, Portuguese, Russian, Spanish, Italian, etc. 5188 NOTE : 1. The radio video output only supports single screen, not dual screen simultaneous display 2 .