Hi-Fi Bluetooth-compatible 5.3 Audio: Experience high-quality, crystal-clear audio via Bluetooth-compatible 5.3, ensuring stable connections and low latency. Enjoy seamless hands-free calls, and stream music from your phone or other Bluetooth-enabled devices with ease Multiple Music Playback Options: This car charger supports multiple audio input methods including AUX, U-disk, TF card, and Bluetooth. Easily play your favorite MP3/WAV music from various sources without hassle Fast Charging Capability: Equipped with a Type-C output that provides 5V/3.1A, this car charger can quickly charge smartphones, tablets, and other devices. Additionally, it has a standard USB output (5V/1A) for reading U-disks while charging FM Transmitter with Adjustable Frequencies: Tune your car's FM radio to 87.5-108.0MHz to enjoy wireless audio streaming. Perfect for cars without Bluetooth, it transmits audio directly to your car stereo Specifications: Material: ABS Screen display: white screen Working voltage: 12-24V Transmission distance: 5-10m Supported formats: MP3/WAV FM frequency: 87.5-108.0MHz Working temperature: 0-55℃ TYPE-C charging output: 5V-3.1A USB output: 5V 1A (U disk reading) Bluetooth-compatible version: 5.3