Features: 1. Car Bt MP3 supports hands-free calling, built-in high-sensitivity microphone, HSP bottom noise and echo suppression. 2. The 1.77-inch TFT color screen displays lyrics, song names, playing status and other information. 3. Automatic detection of car battery voltage, voice reminder, support real-time voltage check. 4. Bt smart MP3 player, support mobile phone or network or all kinds of music APP software playback 5. Support mainstream map APP navigation voice broadcast and QQ or WeChat other software language playback functions 6. Support lossless audio decoding, high resolution, high-performance stereo, support WMA, APE, FLAC, WAV and other lossless music formats. (97 percent of car Bt on the market does not support FLAC, APE format) 7. Support TF card and U disk extended playback 8. The upgraded version of Actions 5.0 Bt chip, the connection is more stable, and the automatic connection is faster. 9. Dual USB car charger, QC3.0 fast charging: 3A or 3.6-6.5V, 2A or 6.5-9V, 1.5A or 9-12V and smart identification charging 5V or 2.4A. Quick charging QC3.0 charging speed is 4 times faster than ordinary 5V or 1A. (Mobile phone needs to support QC3.0 function) 10. Support playback breakpoint memory function. 11. Support 3.5mm AUX audio interface high-quality audio output 12. Support button operation to switch folder playback 13. Knob design, one-key operation to adjust the volume or answer or hang up or call back Specifications: 1. Working voltage: 12V-24V 2. USB output voltage: DC or 5V 3. Dual USB charging: USB-1 QC3.0 fast charging: 5V or 3A (Max), 9V or 2A, 12V or 1.5A and USB-2 5V or 2.4A smart fast charging 4. Bluetooth version: V 5.0 5. Effective distance: about 10M 6. Transmitting distance: andlt 5M 7. Support TF card or U disk capacity: 64GB 8. Voltage detection range: 6-30V 9. Power supply mode: cigarette lighter power supply 10.Bit rate: 64-320KBPS 11.Harmonic distortion: andlt 0.05 percent FM: andlt 0.1 percent ) 12.Signal-to-noise ratio: 85db (FM: 65db) 13. File support type: MP3 or WMA or APE or FLAC or WAV 14. FM frequency range: 87.5-108MHz (100KHz step) 15. Product size: 70x62x205mm Package include: 1 X Car FM transmitter 1 X User manual