Threeinone music, calling and charging solution for cars 1) Music playback modes and formats Connect by Bluetooth, microSD (TF card), or USB flash drive for music playback. Supports MP3 and WAV formats. Compatible with USB and SD players. TypeC charging support included. 20W PD fast charging available (5V 3A, 9V 2.2A, 12V 1.7A) so you can listen to music and charge your phone at the same time. 2) Hands calls and navigation After successful Bluetooth pairing, you can make and receive calls and listen to music. Noise reduction technology enhances hands call quality. Physical controls allow quick access to play/pause, answer, end, suspend, and volume adjustment. GPS navigation audio can be transmitted to the car's audio system for driving guidance. 3) USB ports and fast charging Two USB charging ports: 5V 3A and 5V 1A. QC 3.0 port and 20W PD fast charging. TypeC charging port supported. Can charge two devices simultaneously, with charging speed up to 80% faster than normal charging. You can listen to music from your phone via Bluetooth, or from SD/USB discs. 4) RGB lighting and display RGB backlighting with seven static modes and one dynamic mode. Provides a pleasant, atmosphereenhancing light combination with music. FM frequency is displayed on an LED screen. Backlight ring simplifies operation while driving.