Hign-concerned Chemical:NonePreset Station:87.5-108Built-in DVD Player:NoBuilt-in CD player:NoIs touch screen:NoTF/Micro SD Slot:1Din:One DinOut Power:50WVoltage:12VItem Weight:0.6Special Features:Charger,Mobile Phone,MP3 playersDigital Media Format:Mp3OSD Language:EnglishDisplay Size:2.5"Brand Name:grandnaviOrigin:Mainland ChinaFor Vehicle Brands/Model:universalCertification:CE,FCCFeature: 1. FM Radio(Supports Europe, USA, SUSA, Lati, Brazil radio regions) 2. Supports reading TF card, USB flash drive (audio). 3. TO function. 4. Bluetooth function. 5. RCA audio output can be connected to a subwoofer. 6. Colorful lights. 7. Supports USB output. 8. Mobile remote controlPlease download SmartBT iPlug from APP store or Google play Kindly note: This product installation needs professional skills. If not, please go for professional help.Details refer to the instruction manual. Bluetooth : Search for Bluetooth devices on your phone. Pair to device using the password "0000" if need. How to turn on the radio? Please make sure connect positive pole with RED/YELLOW wire. Connect negative pole with BLACK wire. Reverse connection of positive/negative poles may cause the damageof fuse. If so, please replace with a new fuse then connect wires again.