Product Features 1. Bluetooth, FM audio transmission 2. Support QC3.0, QC2.0, PD, Huawei FCP, Samsung AFC, BC1.2, Apple 2.4A and other charging protocols 3. Support WMA, MP3, WAV, APE, FLAC music formats 4. Support Bluetooth phone, voice, music, navigation 5. Support output overvoltage protection, short circuit protection, overcurrent protection, over temperature multiple protection 6. Low voltage flashing alarm 7. Automatic reconnect 8. Support U disk, TF card peripherals 9. BASS, TREBLE sound effects are optional 10. Support AUX audio input and output Product Specifications: 1. Bluetooth version: 5.3 2. FM frequency: 87.5Mhz-108.0Mhz3. Bluetooth effective distance: 10 meters 4. QC3.0 port output: 5V/3A, 9V/2A, 12V/1.5A 5. PD port output: 5V/3A, 9V/3A, 12V/2.5A 6. Music port: 5V/1A 7. Input voltage: 12V-24V 8. U disk/T card capacity: MAX32GB