Multi-functionsuch: Such as FM transmitter、Mp3 player、Usb Charger、 hands-free calling、 etc. With the product、 you can greatly enjoy music and picking the call up during driving. It is perfectly suitable for the car owners How to use: 1.The car MP3 transmitter inserted into 12V/24V car cigarette lighter 2.The frequency of car radio and car MP3 transmitter transferred to the same frequency 3.Car transmitter automatically play music files and music signal into FM signal received by a car FM frequency modulation system and play 4.Open the phone Bluetooth、 and it is paired、 the Bluetooth hands-free function can be realized Feature: 1.LCD liquid crystal display、 elegant appearance 2.As soon as the auto starts、screen displays its batter voltage 3.With built-in microphone 4.Play music from USB disk and micro SD card;Card reader for USB data line 5.Display the song title、 song information 6.Voice prompts the caller number when a Call comes in.Digital display calling number 7.The axis of rotation joint design point of view can be rotated to facilitate viewing 8.Bluetooth handsfree function:Full Duplex、DSP(Digital signal Processing Technology、CVC technology for echo Cancellation and noise suppression) 9.Charge for iphone/Samsung/HTC/Nokia portable device and etc 10.With remote controller 11.Power switch DC9-26V wide power supply suitable for variety of cars:(24V power supply truck) What is included: 1 x Bluetooth Car Kit 1 x Remote controller 1 x Audio Cable 1 x Manual