Brand & Model BT-760Bluetooth Bluetooth 4.0Compatibility with Bluetooth enabled devices、such as Samsung S6/S5S4/Note5/Note4/Note3、 iPhone 6/iPhone5/iPhone4、 LG G4/G3/G2/、 SONY Z3/Z2/Z1、 ectBluetooth profile HFP、 HSP、 A2DP、 AVRCOPower supply for the car charger DC 12V/24VCar charger output 5V/1A、;5V/2.1ABluetooth Effective range:0-10 metersSupport TF card up to 32GBMusic format:MP3 formatFM Frequency range: 87.5-108.0MhzHow to use it :1.Open the car FM Radio speaker.2.Insert the car charger into the cigarette lighter in the car and keep the FM transmitter and the car FM Radio at the same frequency3.Open the bluetooth of the bluetooth transmitter and pair with your phone.4.Connect with cellphone via bluetooth is no password (Please code 0000 if need)5.Insert a TF card which containing MP3 files into TF card slot of this unit accordingly、 it will play and transmit the MP3 music to car FM Radio.6.3.5mm audio Line-in function: Use the provided audio cable to connect an MP3/Mp4 players or another external device to the 3.5MM audio input of this unit、 when using this function、 please take out TF card、 and external devices's music willtransmit to car FM Radio.NOTE:Please start the car first、 and then put car charger into the cigarette lighter、 then put USB cable to the USB port of car charger.Package included:1 x Bluetooth FM Car Kit1 x Audio Cable1 x Car Charge1 x User manual