Bluetooth FM Transmitter Kit for Car QC3.0 & 7 Colors LED Backlit Radio Hands Free Cars Suit with SD Card Slot

[Crystal Clear Music Streaming]: You can stream music on your car stereo via Bluetooth/ USB Flash Drive (32GB) / microSD Card (32GB). Advanced noise reduction technology will ensure quality, crystal clear sound. Note: WMA MP3 WAV APE FLAC music formats in USB flash drive or microSD card are supported. [Enjoy Hands-free Calls]: technology provides a stable connection and echo-cancellation can reduce background noises for better hands-free calls, so you can answer phone calls with a press of the button.