【PD 30W Fast Charging】Dual USB ports allow you to charge 2 devices at the same time and provide high-speed charging to driver and passenger. Single USB-C PD port (30W Max) can either charge an iPhone from 0–85% in 30 minutes, or power your MacBook Air M2 2022 with full speed. Another USB port is 5V/2.4A, can charge devices as well as can read music files in U disk(≤64GB), supports MP3, WMA, WAV, APE and FLAC format.【Unique Hi-Fi Treble and Bass Control】FM Transmitter features independent volume, bass, and treble control to get more details of the Hi-Fi music. You can find your favorite music experience by adjusting the treble and bass, and enjoy audiophile grade sound that brings to you. The color spectrum auto-syncs with music, truly brings you party atmosphere(can be turn off).【Rotatable LED Screen】The Bluetooth adapter equipped with a 1.38 in LED screen which can better display phone calls, FM channels, music, detect and display your car's battery voltage when the car is started. 180°rotatable design offers you with an adjustable viewing angle of LED display screen and easy access for hands-free calling.【Hands-free Calling & Navigation Broadcast】The built-in microphone equipped with the latest CVC8.0 noise cancellation and Digital Signal Processor (DSP) technologies, works in tandem to collect your voice from all directions. Using the big MFB button answer/redial/hang up/reject calls to free your hands. It also supports broadcasting voice notification from existed navigation Apps, enjoy the smart voice control and play with Siri/Google assistant.