Hands Free Calling:---- simply pair this car transmitter with your phone. You will be able to answer/reject/end calls easily. Hands free function let you have safer driving.</br>Music Player and FM Transmitter:---- this car radio adapter is able to play music. It supports music format such as MP3 WMA WAV and FLV. it is also able to play and transmit music files from USB disk.</br>Fast and Intelligent Charger: ---this FM car charger comes with due USB output 5V/2.5A It will automatically provide the matching output according to the situation.</br>Great compatibility:--- It is compatible with nearly all bluetooth-enabled devices such as iPhone Ipad Samsung LG HTC smartphones tablets etc.</br>Noise Reduction Technology: ---With CVC technology this car FM transmitter provides you with clear phone calling and let you enjoy beautiful music. It also supports A2DP (Advanced Audio Distribution Profile).</br></br>Product Description</br></br><br><b>Specification:</b> <br>Rated working voltage: 12V <br>Limit working voltage: 9-26V <br>USB Output: 5V/2A(Max) <br>Working temperature: 0~50 <br>U Disk Play/USB Output port 5V/2.1A(Max) <br>Play format: MP3 WPA <br>SNR>60dB <br>Degree of distortion: <0.1% <br>Frequency Response: 20Hz-15Khz <br>Resolution of right and left channel>60dB <br>Bluetooth version: Version 2.1 + EDR <br>Bluetooth sound processing: With A2DP(Advance Audio Distribution Profile) <b