1.CRYSTAL CLEAR SOUND --- Incorporating CVC noise suppression technology, adaptador bluetooth para carro efficiently reduces the background noise to deliver CD-Like quality sound with deep bass and no static. Built-In microphone with echo cancellation allows you to take hands phone calls without distraction from driving 2.4 PLAYING MODE --- Car bluetooth adapter to enjoy streaming music easily by connecting smart devices via Bluetooth. SD card slot for playing music or audio books from SD memory cards; USB port with music icon for flash drives and music playback in MP3, WMA, APE, FLAC, WAV formats. 3.5mm Aux output, works with Bluetooth enabled devices, such as for iPhone, iPad, iPod, Tablet, Smart phones or MP3, MP4 Players 3.BLUETOOTH 5.0 & SIRI/GOOGLE ASSISTANT --- Car bluetooth adapter adopt the latest Bluetooth 5.0 connection echnology, the signal transmission and FM signal is more stable, without dropped calls and audio glitches; Transmitter bluetooth para carro support Siri, and Google Assistant, easily use them to make a call, send a text, or get driving directions 4.SPLENDID DESIGN --- Fm transmitter bluetooth blends in any car interior perfectly and won't require much space. Large buttons ensures easy operation and Support 21-key remote control for the bluetooth transmitter car, everyone in car can control music playing or calls ly, keeps you from having to have your eyes off the road to change songs/volume/answer or reject requests etc