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FM transmitter function:
3. Plug the FM transmitter into your vehicle’s cigarette lighter or power port.
4. Tune your radio to an unused FM frequency, then match the same frequency of this unit with your FM transmitter.
5. Insert a USB flash drive or SD card containing MP3 files into the USB port or memory card slot of the transmitter. The
unit will automatically play the MP3 files stored into the memory.
6. Line-in function: Use the provided audio cable to connect an MP3/MP4 player or any other external audio device to
the AUX input of the transmitter. When using this function, please stop playback from the USB or memory card. All
functions can only be controlled by the external device.
Bluetooth function:
1. When using Bluetooth for the first time, you will need to pair your mobile phone with the transmitter. Activate your
mobile phone's Bluetooth function and search for new device. When the mobile phone detects “SY-1537BT”, press
OK to pair and connect your smartphone to the transmitter. If you are asked to insert a password, type “0000”.
2. If you receive a call while music is being played under Bluetooth mode, the music will automatically stop and the
transmitter will switch to telephone mode.
Note: The Bluetooth indicator light located at the top of the screen will stop flashing once the transmitter is connected
via Bluetooth with your mobile phone.
Bluetooth calling
1. Please press the
button in the middle of the keyboard to answer the incoming call.
2. Please press
button in the middle of the keyboard to hang off a call.
3. When making a call, you can only dial the number from your mobile phone.
Note: The Bluetooth indicator located at the top of the screen will flash quickly when talking.
USB charging
Insert the Bluetooth transmitter into your car lighter socket.
Connect the USB Charger port to your mobile phone with
your original USB cable provided with your phone
(USB cable not included)
Your phone will start to charge.
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