1 Din Car Radio Retractable Screen Player Head Unit For Carplay Android Auto. Disassembly key (accessories, instructions, and packaging will be updated from time to time, subject to actual receipt). Read USB flash drive SD card (audio/video/pictures) 3. AUX input function 4. RCA audio output, can be connected to a subwoofer 6. Rear view function after reversing 7. Original car steering wheel learning function 8. USB+TYPE-C charging function 12. Power supply positive and negative pole reverse protection function. All items will be checked before packing. All items are new and of high quality.