Two USB Car Chargers: Rapidtronic FM transmitter comes with two USB ports: One fast charge port (DC 5V 2.1A) and another port for music playing from USB Flash Drive. Both of them can be used for charging.</br>Powerful Music Player: This Bluetooth car transmitter is able to play music from TF/Micro SD Card or USB Flash Drive. It supports music format such as MP3 WMA and WAV. A2DP function also allows you to enjoy your favourite music from your mobile phone when it is connected.</br>Hands-free Calling: With built-in microphone and Bluetooth V3.0+EDR technology the wirelss car transmitter let you enjoy hands-free calling. Simply pair it with your phone first. You will be able to answer/reject/end calls easily. The car transmitter will automatically pair with your device next time.</br>Large Screen and Flexible Design: This Bluetooth car transmitter comes with a large screen that let you know the phone numbers songs playing volume level FM frequency etc. Flexible design helps you to position the transmitter in a perfect place for operation.</br>Super Sound Quality and Great Compatibility:With CVC noise cancelling technology?? the transmitter ensures crisp and high-quality sound for phone calling and music playing. It is compatible with nearly all Bluetooth-enabled devices?? such as iPhone?? iPad?? Samsung?? LG?? HTC?? Google Nexus smartphones?? tablets?? etc. The FM frequency can be tuned from 87.5 MHz to 108.0 MHz.</br></br>Product Description</br></br><b>Rapidtronic Updated Bluetooth FM Transmitter </b><br> Smart Ca