Bluetooth V5.0 3 Music Playback ModesIt can connect stable and smooth, better anti-interference performance. Bringing you a whole new experience. Has 3 music playback modes, Bluetooth connectivity, TF card and AUX cable to connect car charger to play music (TF card supports MP3, WMA, WAV format music playback ). QC3.0 Quick Charge5V/2.4AThis bluetooth transmitter support charge 2 devices simultaneously, built-in smart charging technology, one of the QC 3.0 USB port is charge quickly and the other USB charging port is 5V/ 2.4A faster charging. 2 Install WaysColorful Ambient LightThe main FM transmitter unit is equipped with air-conditioning clip bracket and 3mm adhesive stick base, you can mount it on the car air vent or stick it on the dashboard. The LED light will be switched from red/ orange/ yellow/ green/ cyan/ blue/ violet or into breathing lighting mode. Hands-free Call+Voice NavigationFM bluetooth transmitter supports hands-free calling and navigation broadcast, this Bluetooth radio transmitter will make your driving safer let you no more frequently check the screen. Built-in microphone and noise reduction CVC technology intelligently filters noise, making the sound clearer and the call quality high. Wide Compatibility+ Voice AssistantFM Transmitter is compatible with most Bluetooth enabled devices, such as iPhone, Tablet, Samsung, HTC, Sony and other Android smart phones. Support voice assistant, press and hold 2 seconds to enter SIRI intelligent voice mode.