LDream FM Transmitter 3.5mm Input With Car Charger for SmartPhones and Players

Specifications
FM frequency range: 88.1~107.9 MHz
FM operating distance: 15 feet
Input Voltage:12~24V
USB output: 5V/2.1A
Line length:3 feet

Package Including:
1x FM Transmitter
1x User Manual

Before you use it, Please read the following, here are some tips for you!
1.About the volume is low:
You should first adjust the volume of the car stereo, and then adjust the FM transmitter volume. After you do them, you will solve the problem.
2.About Poor radio reception:
Do some radio Detection,listening to the radio, if there are some noise, then there must be a radio failure or a problem with the antenna.
3.About car models
It fit for the cars which Cigarette Lighters Voltage are between 12V-24V, and do not fit for 36V trunk.
4.About Charging
USB Charger output: 5V/2.4A,enough for you to use
5.About "Plug in the car, shaken shake will restart and Poor road conditions,Bumpy place,will start off again"
Please Firmly inserted in the end, then turn left and right a few times, Hole car cigarette lighter socket to plug the card firmly to MP3, it is recommended to clean up the cigarette lighter hole, thus reducing the problem of poor contact.
6.About " Music has noise"
Check whether the car FM stereo system's frequency matches with the FM transmitter or not -- Check your FM frequency channel is a clear channel without the interference of your local FM -- station -- Check whether the audio files are good quality compressed MP3 files or not -- Check whether the car is passing the strong frequency interference area, such as train station, -- tram station or mobile transmission station or not.