Crystal clarity Sound --- The Bluetooth adapter effectively reduces the background noise for the car that contains CVC noise suppression technology and deep bass and non-static CD-like quality sound. The internal microphone that prevents echo allows you to make phone calls without distraction caused by driving. .4 Playing Mode --- The vehicle is the Bluetooth adapter to easily enjoy the music flow by connecting smart devices through Bluetooth. SD card slot to play music or audio books from SD memory cards; Flash Drivers and Mp3, WMA, APE, FLAC, WAV formats Music icon for playing music icon USB port. 3.5 mm Aux output, iPhone, iPad, iPod, tablet, smartphones or mp3, mp4 players such as bluetooth devices .Bluetooth 5.0 and secret/Google assistant --- Car Bluetooth adapter adopts the latest Bluetooth 5.0 connection technology, signal transmission and FM signal are more stable, without search interruptions and sound problems; Car Bluetooth support Siri and Google Assistant, use them to easily search, send messages or get driving instructions . MUHTAM DESIGN --- FM transmitter Bluetooth, each vehicle perfectly adapts to the interior and does not take up much space. Large buttons provide easy use and support the 21 -key remote control for the Bluetooth transmitter car, everyone in the car can ly control music or calls, to change the songs/sound level/answer or reject requests and so on. You don't have to separate your eyes from the road for 180 degrees Returable LED display --- Bluetooth for car music and phone 1,8-inch large screen, phone calls, FM channels, music and other information better images and detects the battery power of your vehicle when running. The LED screen that can rotate 180 degrees the imaging comfort. Ideal screen size to help you drive ly without disturbing