3 PORT charging PD & QC ChargerThe car adapters can fast charge 3 devices simultaneously via PD 20W and QC 3.0 port, 4X faster than standard chargers. In addition, it also features a USB charging port (5V/1A) as a USB flash drive port to play music. Dual USB and PD ports, quick charging output, can charge phones, tablets, driving recorders, navigation, etc.3 WAYS TO CONNECT Bluetooth, USB Drive & SD/TF CardThe Bluetooth FM transmitter supports music playing and connection via USB disk (up to 64GB), SD/TF Memory card (up to 32GB) and through Bluetooth with your devices.Dynamic Bass & BacklitExclusive bass keypress juicing up the stereo effect makes this device stand out, which offers you crystal-clear sound while you are enjoying the long ride with your beloved ones. Offers 7 different colour modes for a brighter display. Auto reconnect when power on, memorizes frequency and song, playing from the first sentence of the song that was disconnected.HANDS-FREE CALLINGThis Bluetooth car transmitter has a built-in microphone that allows you to easily answer, hang up, reject incoming calls with a click of the button. You can use the multi-function buttons to control calls and music, seamlessly switch between calls and music, for safer drive. Supports hands-free calling, built-in microphone, clear and smooth calls, one-key answer/reject/redial, safer driving.Advanced Bluetooth 5.0 TechnologyBuilt-in Bluetooth 5.0 chip provides a more stable connection for streaming music over FM frequency allowing for faster pairing with compatible devices including a wide variety of devices compatibility. Fit most devices that support Bluetooth function, and all vehicle type including car, van and truck(12-24V). Bluetooth 5.0 connection, MCU+DSP dual-core processor, CVC intelligent noise reduction, no noise, more stable and clearer.SAFE PROTECTION & WIDE COMPATIBILITYThis car adapter is designed with over-current protection, over-voltage protection, short circuit protection, built-in smart IC. All of these can prevent many unsafe problems. It is compatible with most Bluetooth enabled devices, such as compatible with iPhone, iPad, LG, Samsung, Tablets, HTC, Sony and other Android Smartphones. It also fit all vehicles (12-24V).