With Bluetooth hands-free call functionality and a built-in microphone, you can answer calls with a simple touch, promoting safer driving practices. Stay connected while keeping your hands on the wheel and your focus on the road for a safer and more enjoyable driving experience.Introducing our multifunctional in-car Bluetooth FM transmitter. With Bluetooth 4.2 technology, FM radio capabilities, and lossless sound quality, it provides a versatile and high-quality audio experience for your car.Our device is convenient to use. Simply adjust the frequency of the car FM transmitter to match your car player's frequency, and it will play the songs from your U disk or TF card seamlessly. Enjoy your favorite music hassle-free while driving.With dual USB ports and smart diversion, our device enables fast charging while listening to music simultaneously. Enjoy the convenience of charging two devices at once, ensuring your gadgets stay powered up while you immerse yourself in your favorite tunes.Equipped with a smart chip, our device offers intelligent protection, ensuring efficient electricity conversion and reducing energy consumption. This smart feature safeguards your devices and optimizes charging efficiency for a more eco-friendly and reliable charging experience.With the voltage detection function, our device displays the FM frequency and allows real-time monitoring of your car's voltage. This safety feature enhances your driving experience, ensuring you are aware of the car's electrical status for a safer journey.