FM Transmitter, Bluetooth Hands free Car Kit Radio Adapter, Wireless In-Car FM Transmitter with USB Car Charger,TF Slot, U-Disk Port, AUX Input FREE HANDS-FREE & MORE SECURE WHEN DRIVING: Built-in microphone with voice detection allows you to speak to callers without picking up the phone, ensures every conversation comes out clearly and your attention will not be disturbed while driving. • 4-PLAYING MODES: (1) Via Micro TF card ,up to 32G memory. (2)Via U-disk,up to 32G memory. (3) Via 3.5mm Audio cable (4)Via Bluetooth • CRYSTAL SOUND QUALITY & ENJOY MUSIC EVERYWHERE: Picket Bluetooth FM transmitter suppresses the noise and wind to create better sound quality by CVC technology. It is a super good solution for those who enjoy listening to music when driving. • FLEXIBLE NECK & MEMORY FUNCTION: With a flexible neck, Picket Fm Transmitter is able to adjust in your own viewing angle. And only once the device is successfully paired, it automatically connects to your car through the memory function. • DUAL USB DESIGN: With 5V / 2.1A charging port you can charge your mobile phone while the other can play your music from U-disk fluently.