ZTOP Wireless Bluetooth Handsfree Car FM Transmitter Modulator Car Mp3 Player For IPhone Samsung IPad Wirelessly transmit phone call from Bluetooth mobile phone to the Car FM stereo system Support USB disk and Micro SD card, support TF card Reader Switch to hands-free mode automatically from music playing status when receiving calls 5 EQ for optional:Natural, rock, pop, classic, Jazz Compatible with : iPod/iPhone, Samsung, iPad, Nokia and other mobile devices