1. Support FM stereo transmission technology 2. Support TF card U disk playback 3. Support MP3, WAV music format files 4. Wireless support hands-free calls 5. Type C, Dual USB 3.1A+1A quick charge 6. Input voltage: 12-24V 7. FM: 87.5-108.0MHZ 8. Effective range: 5-10m
