Bluetooth FM Transmitter Yosoo Car Kit MP3 Player Wireless FM Transmitter Modulator Adapter with USB SD and Remote Control Wireless bluetooth support,built-in microphone,safe and convenient to answer the call when driving the car. Support USB/SD card(1GB-32GB),support MP3/WMA/WAV/FLAC music format USB charging port for charging iPod/ iPhone, iPad and other mobile device. (output: DC 5V/2.1A) Support A2DP function of mobile phone,mobile phone via Bluetooth directly broadcast high quality mobile phone music (Bluetooth stereo) Support download function. It can be directly connected to the computer to download song Micro SD/TF card(TF card not included)