1. Introducció
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. Producte acabatview
2.1 Contingut del paquet
- 1x LENCENT Bluetooth Radio Transmitter for Car
- 1x Guia de l'usuari
2.2 Diagrama del producte

Figura 1: Frontal view of the LENCENT Car FM Transmitter, showing the digital display, PD 20W and QC3.0 18W charging ports, and control buttons.
3. Especificacions
| Característica | Detall |
|---|---|
| Dimensions del producte | 4.13 x 2.56 x 1.77 polzades |
| Pes de l'article | 1.61 unces |
| Número de model | BT94 |
| Marca | LENCENT |
| Tecnologia de connectivitat | Sense fil (Bluetooth 5.1) |
| Font d'alimentació | Corded Electric (12-24V Car Socket) |
| Ports de càrrega | PD 20W (Type-C), QC3.0 18W (USB-A) |
| Característiques especials | Fast Charging, Bass Boost, Hands-free Calling, CVC Noise Cancellation |
| Material | Plastic, Iron |
4. Instruccions de configuració
4.1 Configuració inicial
- 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.
- Confirmeu: Once matched, the display will stop flashing.

Figure 2: Visual guide for connecting the FM transmitter to your car's radio.
4.3 Vinculació Bluetooth
- After setting the FM frequency, enable Bluetooth on your mobile device.
- Cerca 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. Instruccions de funcionament
5.1 Reproducció de música
- 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 Trucades de mans lliures
The transmitter features a built-in microphone and CVC noise cancellation for clear hands-free calls.
- Respon a la trucada: Press the green phone button once to answer an incoming call.
- Rebutja la trucada: Long press the green phone button to reject an incoming call.
- Penjar: Press the green phone button once during a call to hang up.
- Torna a marcar: 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 Dispositius de càrrega
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:
- Ajust de volum: In music playback mode, rotate the knob left or right to decrease or increase the volume.
- Ajust de freqüència: 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 Funció de reforç de greus
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. Manteniment
- Mantingueu el dispositiu net netejant-lo amb un drap suau i sec. Eviteu utilitzar productes químics agressius o netejadors abrasius.
- 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. Solució De Problemes
| Problema | Possible solució |
|---|---|
| No power to the transmitter. |
|
| Àudio estàtic o de mala qualitat. |
|
| El Bluetooth no es connecta. |
|
| La càrrega ràpida no funciona. |
|
8. Garantia i Suport
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 weblloc.
9. Informació de seguretat
- No desmunteu, repareu o modifiqueu el producte.
- Do not expose the product to extreme temperatures, direct sunlight, or humid environments.
- Mantingueu el producte lluny de l'aigua i altres líquids.
- Eviteu deixar caure o sotmetre el producte a forts impactes.
- 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.





