... 2.LCD display, 3.With FM transmitter 4.Support SD&TF card,MP3,WMA Certificate: CE, RoHS, FCC, BQB Steering Wheel Bluetooth ... full frequency range(88.1-107.9MHz)4.Support SD&TF card,MP3,WMA format5.Car power voltage range:DV12-24V. Bluetooth ... to earpiece ect.monitoring equipment. 13.Automatically play music from TF card 14.Adopt digital transmitting technology to keep from outsie noise ...