PD 20W + QC 3.0 fast charging-2 USB fast charging ports are perfect for charging your mobile phone/tablet. This car Bluetooth FM transmitter is equipped with a USB C fast charging port, which can quickly charge iPhone 11/12 from 0% to 80% in 40 minutes. A USB 3.0 port is 4 times faster than a standard charger. And 1 additional USB charging port (5V/1A), which can also be used as a USB flash drive port to play music$ 3 Music playback method and Bluetooth car adapter-This Bluetooth transmitter allows you to play music through Bluetooth, TF card and U disk. The car Bluetooth FM transmitter uses Bluetooth 5.0 technology to provide a low-latency, more stable connection for music playback and hands-free calls. $ The TF mount supports non-destructive sound quality playback, with excellent crystal clear sound quality, restores the original sound, and satisfies the discerning ears. Clear hands-free calls and voice assistants-The Bluetooth car adapter has a built-in high-performance noise-cancelling microphone for clearer and smoother calls. Compatible with iPad, iPhone, Samsung, Google, LG, HTC, etc. Support Siri, Google voice navigation. This car Bluetooth FM transmitter is easy to operate, one-key automatic tuning to answer/hang up calls$ Voltage warning function-applicable to all 12V-24V car, truck, SUV car Bluetooth FM transmitter. The LCD screen can display the current FM radio station and monitor the battery voltage in real time. The car Bluetooth adapter allows you to keep track of the health of the car battery at any time, effectively preventing various problems and protecting your driving safety$ 7-color LED backlight and warm service-Using the car Bluetooth FM transmitter, you can play music through Bluetooth, U disk and TF card (32GB, MP3/FLAC/WMA/APE music format). The colorful LED backlight creates a music atmosphere, relieves driving fatigue, and makes your journey more exciting.