Stable Connection: Solid Bluetooth and FM connection lets you stream music straight from your phone to your car’s sound system. | Charge Easily - With two USB charging ports (output 5V-2100MA), you can get your devices full charged in short time. The power comes from cigarette lighter so it is suitable for most cars | Effortless Hands-Free Calls: Bluetooth 4.2 provides a strong, stable connection for reliable hands-free calling that you can hear through your car’s stereo. | More stable FM signal, better anti-interference performance, enhanced sound experience and built-in microphone with Echo cancellation and noise suppression (CVC) technology, offer your hands-free talking and wonderful music.Anti- statics design, enjoy the lossless music in your car! | Universal Compatibility & Memory Function - Supporting mobile's A2DP function, work with SD, TF card and U disc. Fit for most of the smartphone, tablet and more devices that equipped with bluetooth function. Besides, it will automatically connect to its memorized paired Bluetooth device when power on.