1. Introduction
This user manual provides detailed instructions for the LENCENT Car FM Transmitter (Model BT94). This device is designed to enhance your in-car audio experience by allowing wireless music streaming and hands-free calling through your car's FM radio. It also features fast charging capabilities for your mobile devices.
2. Product Overview
2.1 Package Contents
- 1x LENCENT Bluetooth Radio Transmitter for Car
- 1x User Guide
2.2 Product Diagram
Figure 1: Front view of the LENCENT Car FM Transmitter, showing the digital display, PD 20W and QC3.0 18W charging ports, and control buttons.
3. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 4.13 x 2.56 x 1.77 inches |
| Item Weight | 1.61 ounces |
| Model Number | BT94 |
| Brand | LENCENT |
| Connectivity Technology | Wireless (Bluetooth 5.1) |
| Power Source | Corded Electric (12-24V Car Socket) |
| Charging Ports | PD 20W (Type-C), QC3.0 18W (USB-A) |
| Special Features | Fast Charging, Bass Boost, Hands-free Calling, CVC Noise Cancellation |
| Material | Plastic, Iron |
4. Setup Instructions
4.1 Initial Setup
- Insert the LENCENT Car FM Transmitter into your vehicle's 12V-24V cigarette lighter socket. The device will power on automatically.
- The LED display on the transmitter will light up, showing the current FM frequency.
4.2 FM Transmitter Connection
To stream audio from your device to your car's speakers, you need to tune both the transmitter and your car radio to the same unused FM frequency.
- Find a blank station: Tune your car's FM radio to an empty frequency with no active broadcast. This will typically sound like static.
- Press "CH" button: Long press the "CH" button on the FM transmitter until the frequency display starts flashing.
- Tune to the same FM frequency: Rotate the large knob on the transmitter to adjust its frequency to match the blank station you found on your car radio.
- Confirm: Once matched, the display will stop flashing.
Figure 2: Visual guide for connecting the FM transmitter to your car's radio.
4.3 Bluetooth Pairing
- After setting the FM frequency, enable Bluetooth on your mobile device.
- Search for available Bluetooth devices and select "C81" from the list.
- Once paired, the transmitter's display may show a Bluetooth icon or a confirmation message. You are now ready to stream audio and make calls.
Video: Demonstrates the features and setup of the LENCENT Car FM Transmitter, including deep bass, hands-free calling, and fast charging capabilities.
5. Operating Instructions
5.1 Music Playback
- Once paired via Bluetooth, play music from your mobile device. The audio will be transmitted to your car's FM radio.
- Use the large rotary knob on the transmitter to adjust the volume. Rotate clockwise for volume up, counter-clockwise for volume down.
- Press the play/pause button (usually integrated into the knob or a separate button) to control music playback.
- Use the next/previous track buttons (if available) to skip songs.
Figure 3: The transmitter delivers deep bass and Hi-Fi fidelity for an enhanced audio experience.
5.2 Hands-Free Calling
The transmitter features a built-in microphone and CVC noise cancellation for clear hands-free calls.
- Answer Call: Press the green phone button once to answer an incoming call.
- Reject Call: Long press the green phone button to reject an incoming call.
- Hang Up: Press the green phone button once during a call to hang up.
- Redial: Double-press the green phone button to redial the last number.
Figure 4: The device supports clear and stable hands-free calling for safer driving.
5.3 Charging Devices
The LENCENT Car FM Transmitter is equipped with two fast-charging ports:
- PD 20W (Type-C Port): For fast charging compatible devices like iPhones and iPads.
- QC3.0 18W (USB-A Port): For fast charging compatible Android smartphones and other devices.
Simply connect your device's charging cable to the appropriate port on the transmitter to begin charging.
Figure 5: The transmitter provides 38W total fast charging via PD 20W and QC3.0 18W ports.
5.4 Adjusting Volume and Frequency
The large rotary knob on the transmitter serves dual functions:
- Volume Adjustment: In music playback mode, rotate the knob left or right to decrease or increase the volume.
- Frequency Adjustment: After long-pressing the "CH" button (as described in Setup), rotate the knob left or right to change the FM transmission frequency.
Figure 6: The large rotary knob allows for easy adjustment of both volume and FM frequency.
5.5 Bass Boost Function
To enhance the bass output of your music, press the dedicated "b" button (often red or marked with a bass icon) on the transmitter. Press it again to turn off the bass boost.
6. Maintenance
- Keep the device clean by wiping it with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Ensure the cigarette lighter socket is clean and free of debris for optimal connection.
- Store the transmitter in a cool, dry place when not in use.
7. Troubleshooting
| Problem | Possible Solution |
|---|---|
| No power to the transmitter. |
|
| Static or poor audio quality. |
|
| Bluetooth not connecting. |
|
| Fast charging not working. |
|
8. Warranty and Support
LENCENT provides a warranty and lifetime support for this product. If you encounter any connection issues or problems during use, please contact the LENCENT US-authorized store for a solution. We are committed to providing a satisfying solution for our customers.
For further assistance, please refer to the contact information provided with your purchase or visit the official LENCENT website.
9. Safety Information
- Do not disassemble, repair, or modify the product.
- Do not expose the product to extreme temperatures, direct sunlight, or humid environments.
- Keep the product away from water and other liquids.
- Avoid dropping or subjecting the product to strong impacts.
- Ensure proper ventilation around the device during use, especially when charging.
- Do not operate the device while driving if it distracts you from safe operation of your vehicle.
