Product description:
1. LED display
2. Microphone
3. USB Quick Charge: QC3.0: 5V/2.4A,
9V/1.75A, 12V/1.25A
4. Previous song
5. USB flash drive reading & playing port
6. TF card slot
7. Next song
8. Multifunctional button: change fre/-,
answer/end calls.
Status
Car battery voltage
FMT-B7 is ready to pair
FM frequency
LED indicator
