WECODO Wireless FM Transmitter Handsfree Car Kit MP3 Player with 5V/3.1A Dual USB Charger Ports for Cellphone and Tablet PC Multifunctional Design 5 in 1: Wireless Bluetooth in-car Multifunction FM Transmitter enables you to do Hands-free calls, enjoy clear music, GPS voice navigation, charge your device. Guarding your driving: Bluetooth FM Transmitter built-in microphone makes hands-free calls easier, you can greatly enjoy music and picking the call up during driving for safety, perfectly suitable for car owners. Smarter Technology:This FM Transmitter car kit Support Power off Memory-automatically Recover the Ex-time Frequency and Song Playing, Last number Call back when press the answering button twice. Dual USB Charger Makes Wide Compatibility: 5V/2.1A and 5V/1A USB,charges your mobile devices including iPad (max speed), iPhone (max speed), iPod, HTC, Galaxy, Blackberry, MP3 Players, Digital Cameras, PDAs, Other Android Mobile Phones. Excellent sound quality : Use Call Echo Cancellation and Noise Reduction(CVC) technology, Which provides Crystal Clear HD Audio Decoding and Assures High Quality.