KBTEL G7 Bluetooth FM Transmitter With TF/USB flash drives Music Player Hands-free Calling SD and USB Charger (Rose Gold) FM Transmitter.Play stereo quality sound from your phone, Micro SD card, USB flash drive and MP3 to your car speaker stereo system via FM radio signals. Tune your car's radio into any unused FM channel and match the same frequency on PN38P from 87.5MHz to 108.0 MHz. In-car Speakerphone.It's an excellent hands-free solution after Bluetooth connection, talk freely on your mobile phone, with your eyes on the road and your hands on the wheel. Just press the big friendly button to answer and enjoy crystal clear hands-free conversation. Excellent stereo sound quality.High-performance built-in microphone with Echo cancellation and noise suppression (CVC) technology which can offer your clear talking and wonderful music.Bluetooth sound processing:A2DP Compatible Modes: Apple , Samsung , HTC , LG , Sony , Motorola , Nokia , ASUS , Microsoft & More Smart phones , Tablets & MP3 Players and other mobile devices. 1 Year Warranty and Friendly Customer Service