Smart Bluetooth FM TransmitterCar charger Kit, stable FM signal with anti-interference function, enjoy stereo music from mobile devices. All-in-one function button, easy operation.Pair in Seconds and Memory FunctionJust plug and tune in to the same frequency (range from 87.5 to 108 MHz). Now pair your phone or other devices via Bluetooth. ALL DONE! If in Flash Drive Mode, it will resume the playlist next time you start your car.Hands-free Call ust a single click to answer an incoming call hands-free with the built-in microphone which guarantees a crystal clear sound quality thanks to the CVC 6.0 noise cancellation technology.