1>>>Bluetooth FM Transmitter Car Charger
Wirelessly transmit phone call from mobile phone to car FM stereo system.
Switch to hands-free mode automatically from music playing status when receive call.
2>>>USB / MP3 Player
Music playing via Bluetooth enabled device or USB flash drive
3>>>Dual Ports & QC3.0 Charger
Support charge both devices simultaneously, one is for QC3.0 quick charger.
4>>>Battery Voltage Display
Low voltage warming warning: Less than 12V (Voice prompt ).
5>>>Voice call introduction
1: Answer an incoming call: Short press the phone key
2：Hang up the phone: short press the phone button
3：Redial at the end: double-click the phone button
4：Reject the call: long press the phone button for about 2 seconds
5：Cancel dialing: dialing process, short press the phone key
6：Incoming call number: English voice report
7：Caller ID: Show CAL
8：Private answer: call status, long press the phone button, you can cut to the phone to answer, press and hold back to Bluetooth again
9：Call quality: Voice call, clear voice, no echo, no noise
6>>>About Bluetooth and music
1:Power-on operation: The product is powered on automatically, and there is a startup language prompt. The startup screen displays the voltage and input voltage, and the display voltage is lower than 12V.
2：Bluetooth pairing: After the product is powered on, it automatically enters the Bluetooth state, the Bluetooth icon (bt) flashes, the pairing is successful, the Bluetooth icon stops flashing, and the Bluetooth voice connection is disconnected.
3:U disk playback: Insert the U disk into the USB (♫) port, U disk playback display: USB, support up to 64G memory.
4：How to Pair frequency: Find an blank station and keep the FM transmitter and car FM radio at the same frequency.(frequency range: 87.5~108.0MHz) Press and hold the “phone” button until the LED screen starts flashing the frequency. Press the previous/next button tune the transmitter to the same blank frequency.
5：FM transmit power: The product can receive signals up to 5m from the radio.
6： When the USB flash drive and Bluetooth are connected at the same time, the USB flash drive mode takes precedence.