LDNIO C706Q Bluetooth FM Transmitter and Car Charger User Manual

1. Product Overview

The LDNIO C706Q is a versatile in-car accessory that combines an FM transmitter, Bluetooth connectivity, and multiple USB charging ports. It allows you to stream audio from your smartphone to your car's FM radio, make hands-free calls, and charge your devices simultaneously.

Key Features:

• Bluetooth 5.0 for stable connection and improved audio.
• FM Transmitter function for audio streaming to car radio.
• Dual USB ports for charging (USB-A1 and USB-A2).
• AUX output for direct audio connection.
• Hands-free calling with "One Touch" operation.
• Digital display for FM frequency.

Image: The LDNIO C706Q FM Transmitter plugged into a car's cigarette lighter socket, displaying "87.5" on its digital screen. A smartphone is connected via a charging cable, showing 85% battery. This image illustrates the device in an operational car environment.

2. Package Contents

Please ensure all items are present in the package:

• LDNIO C706Q Bluetooth FM Transmitter
• User Manual (this document)

Image: The retail packaging for the LDNIO C706Q Bluetooth FM Transmitter. The front of the box highlights "Bluetooth FM Transmitter Dual USB charger" and shows an image of the device. The back of the box details features like Bluetooth 5.0, QC3.0 fast charging, and hands-free calling.

3. Device Layout

Familiarize yourself with the various components of your LDNIO C706Q:

Image: A top-down view of the LDNIO C706Q FM Transmitter. Visible features include the digital display, play/pause button, track skip buttons, a 3.5mm AUX output, and a USB-A charging port (USB-A1).

Image: A side view of the LDNIO C706Q FM Transmitter, highlighting the 3.5mm AUX output, the USB-A1 charging port, and the main body that plugs into the car's cigarette lighter.

Image: A view of the LDNIO C706Q FM Transmitter from the bottom, showing an additional USB-A2 charging port and a slot for a MicroSD card.

Components:

1. Digital Display: Shows FM frequency.
2. Play/Pause/Call Button: Multifunction button for media control and call management.
3. Previous/Next Track Buttons: Also used for FM frequency adjustment.
4. USB-A1 Port: Charging port.
5. USB-A2 Port: Charging port.
6. AUX Output: 3.5mm audio jack for direct connection to car stereo.
7. Microphone: For hands-free calls.
8. MicroSD Card Slot: For playing music directly from a memory card.

4. Setup Instructions

4.1. Powering On

1. Insert the LDNIO C706Q into your car's 12V/24V cigarette lighter socket.
2. The device will power on automatically, and the digital display will light up.

4.2. FM Frequency Pairing

1. Tune your car's FM radio to an unused frequency (one with no static or broadcast).
2. On the LDNIO C706Q, press and hold the Play/Pause button until the FM frequency on the display starts flashing.
3. Use the Previous/Next track buttons to adjust the FM frequency of the transmitter to match your car's radio frequency.
4. Once matched, press the Play/Pause button again to confirm the frequency.

4.3. Bluetooth Connection

1. After powering on, the device will enter Bluetooth pairing mode automatically. The display might show "bt" or a similar indicator.
2. On your smartphone, enable Bluetooth and search for available devices.
3. Select "LDNIO C706Q" (or similar name) from the list to connect.
4. Once connected, a voice prompt will confirm the successful pairing.

Image: The LDNIO C706Q FM Transmitter plugged into a car's power outlet, with a smartphone connected via a charging cable. Text overlays highlight "Bluetooth 5.0" and "FM TRANSMITTER Triple USB charger," illustrating its core functionalities.

5. Operating Instructions

5.1. Playing Music

Via Bluetooth:

1. Ensure your phone is paired with the LDNIO C706Q via Bluetooth.
2. Open your music player on your phone and start playback.
3. Audio will be transmitted to your car's FM radio.
4. Use the Play/Pause button on the transmitter to control playback.
5. Use the Previous/Next track buttons to skip tracks.

Via MicroSD Card:

1. Insert a MicroSD card with MP3/WMA/WAV/FLAC audio files into the card slot.
2. The device should automatically detect and start playing music from the card.
3. Use the Play/Pause and Previous/Next track buttons for control.

Via AUX Output:

1. Connect one end of a 3.5mm audio cable to the AUX output of the LDNIO C706Q.
2. Connect the other end to your car's AUX input.
3. Select AUX input on your car stereo.
4. Play music from your phone (connected via Bluetooth or cable to the transmitter).

5.2. Hands-Free Calling

Image: The LDNIO C706Q FM Transmitter, highlighting its "One Touch" feature for hands-free calls. The device is shown plugged into a car's power outlet, emphasizing its ease of use for communication.

1. When a call comes in, press the Play/Pause/Call button once to answer.
2. To end a call, press the Play/Pause/Call button once.
3. To reject an incoming call, press and hold the Play/Pause/Call button.
4. To redial the last number, double-press the Play/Pause/Call button.

5.3. Charging Devices

The LDNIO C706Q features two USB-A charging ports:

• Connect your device's USB charging cable to either USB-A1 or USB-A2 port on the transmitter.
• The device will begin charging automatically.

6. Maintenance

To ensure the longevity and optimal performance of your LDNIO C706Q:

• Keep the device dry. Avoid exposure to moisture or liquids.
• Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
• Avoid extreme temperatures.
• Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel if needed.
• Unplug the device from the car's power socket when not in use for extended periods.

7. Troubleshooting

If you encounter issues with your LDNIO C706Q, refer to the following common problems and solutions:

8. Specifications

9. Warranty and Support

For warranty information and customer support, please refer to the documentation provided with your purchase or contact Ldnio customer service directly. Specific warranty terms may vary by region and retailer.