1: Bluetooth hands-free calling; USB port with charging function
2.1A
2: eliminate echo and noise
processing during calls; 3: stereo Bluetooth and FM transmission
technology;
4: Support USB/TF card/audio
head;
5: Support MP3 format
music;
6: Automatic power off memory
function;
7: cigarette lighter power: DC12V-24V voltage power
supply;
8: Bluetooth version 4.1 FM transmit frequency: 87.5~108Mhz