1.UNIVERSAL COMPATIBILITY-- First of allit work with Bluetooth enabled devices such as smartphones Samsung iPhone iPad iPod Samsung Galaxy S5 Tablet and moreYou can use it to play spotify and map navigation. Any other Popular music software or E-book drama fiction cross talk. Any of the Sounding APP software.</br>2.WHAT'S MORE- - hands free function; support TF / MicroSD Card up to 32G memory; support A2DP; support only MP3/WMA format songs in TF Card; support AUX output and input. There are 3.5mm to 3.5mm adaptor for your mp3 mp4 player or other compatible audio device that have a 3.5mm audio jack. Support the flash drive.</br>3.BIG LCD DISPLAY- -phone number for incoming calls & name of songs playing through TF Cards could be displayed as well; (songs via Bluetooth will not display ) Simply paired with your phone when using the Bluetooth FM Transmitter and its hands-free system can set your hands free when answering a call and let you drive safely. Perfectly suitable for car owners.</br>4.AUTOMATIC MEMORY FUNCTION--station or the songs??when use the FM transmitte mp3 second time. 7 built-in EQ: Normal?? ROCK?? POP?? CLASSIC?? Country?? JAZZ?? DBB.</br>5.ENJOY QUALITY MUSIC AND QUICK CHARGER--Do not waste your time?? when you are in car?? you can simultaneously charge your phone and listen to music using the bluetooth feature?? With two USB ports?? you can charge your devices at the same time(Note: The one on adapter can only charge your device?? the one on MP3 player can charge your device and supports ")</br></br>Product Description</br></br><b>Specifications:</b><br> Product Size: 7.9 x 3.9 x 1.6 inches<br> Frequency: 87.5-108.0 MHZ<br> USB (Maximum support): 32GB<br> Transmit Distance: >10M<br> With infrared remote control?? easy operation<br> With 3.5mm line-in jack?? support external audio devices.<br> <br> <b>Before you use it?? Please read the following?? here are some tips for you!</b><br> 1.About the volume is low: <br> 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.<br> 2.About Poor radio reception: <br> 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. <br> 3.About car models<br> It fit for the cars which Cigarette Lighters Voltage are between 12V-24V?? and do not fit for 36V trunk.<br> 4.About Charging<br> USB Charger output: 5V/2.1A??enough for you to use<br> 5.About " car?? shaken shake