1. Radio (FM) 2. Support TF card reading, USB flash drive (audio) 3. AUX function 4. Bluetooth function 5. RCA audio output, can be connected to a subwoofer Colorful lights Supports USB output Voice assistant function (in Bluetooth mode, long press the button to wake up the voice assistant) Mobile App Functions Model:M11 Software solution:2900 RF:FM 87.5-108.0 MHz Radio IC:Integrated Power amplifier IC:TDA1028 Output power:45Wx4 Working voltage:12-14.4V Working temperature:-10-+60 Bluetooth version:5.0(default name: car BT) CPU:2900 Screen resolution:None Screen size:LED display (white Nixie tube) Weight:0.319kg Mobile internet: supports APP connection USB port:Front USB 2.0x2 (one for charging and one for reading USB drive) TF card:supported DAB function:does not support reset key: supports Rca port:2 audio outputs (1 channel) left channel+1 channel right channel), front aux audio input (left channel+right channel) audio Format:mp3/wma/wav/flac Language:English Colour:Black Material:Plastic Size:18.8x5.5x5.8cm, Installation size:178x50mm Package Contents: 1 x car radio 1 x remote control 2 x power harness 2 x Remove key 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.