Car MP3 Player FM Transmitter, Bluetooth Function for Hands free Call, SD / MMC Card Slot, Wireless with Remote Control (Black) Car FM MP3 SD MMC Bluetooth Transmitter for IPOD NANO. Built-in FM transmitter. Support frequency range from 87.5MHz-108MHz With the bluetooth feature, it ONLY supports handsfree call & Call Line Identity. Bluetooth can not play music. Built-in SD/MMC card slot. Support SD/MMC expansion card (Up to 8GB) which is NOT included in the package. Warranty: 30-day money back & 1-year guarantee!