Product Description: Enhance Your Drive with the B4 Car Bluetooth FM Transmitter Transform your car into a smart audio hub with the B4 Car Bluetooth FM Transmitter. This versatile device offers seamless connectivity and superior sound quality, making every journey more enjoyable and convenient. Simple Setup and Operation Easily plug the Bluetooth car adapter into your car's cigarette lighter. Select an empty FM frequency on your car radio, connect your smartphone or tablet via Bluetooth, and adjust to the same frequency. Once paired, your phone's music will stream directly to your car's audio system, providing a hassle-free listening experience. Versatile Music Playback Options Enjoy music your way with three playback modes: Bluetooth pairing, memory card, and U disk. The adapter supports WMA, MP3, WAV, and FLAC file formats, ensuring a rich audio experience. It automatically switches to call mode when there's an incoming call, so you never miss a beat. Dual USB Fast Charging Equipped with dual USB ports, the FM transmitter offers a maximum output of 5V/3.1A, allowing you to quickly charge your devices. The USB ports also support U disk reading, enabling you to play your favorite music while charging your phone and laptop simultaneously. Hands-Free Calling for Safer Driving Stay connected while keeping your hands on the wheel. The transmitter supports hands-free calling, allowing you to switch seamlessly between calls and music. With a built-in microphone and noise suppression (CVC) technology, enjoy clearer calls and safer driving. Answer, redial, hang up, or reject calls with a single touch. Advanced Bluetooth V5.0 Compatibility Featuring the latest Bluetooth V5.0 technology, this FM transmitter ensures fast and stable connections with any 12-24 V vehicle. It offers excellent signal reception, reduced interference, and lower power consumption. Compatible with iOS, Android, tablets, and other Bluetooth devices, it also supports a power-off memory function for added convenience. Upgrade your driving experience with the B4 Car Bluetooth FM Transmitter, combining cutting-edge technology with user-friendly features to keep you entertained and connected on the road.