1. Introdución
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. Produto rematadoview
2.1 Contido do paquete
- 1x LENCENT Bluetooth Radio Transmitter for Car
- 1x Guía do usuario
2.2 Diagrama do produto

Figura 1: Fronte view of the LENCENT Car FM Transmitter, showing the digital display, PD 20W and QC3.0 18W charging ports, and control buttons.
3. Especificacións
| Característica | Detalle |
|---|---|
| Dimensións do produto | 4.13 x 2.56 x 1.77 polgadas |
| Peso do elemento | 1.61 onzas |
| Número de modelo | BT94 |
| Marca | LENCENT |
| Tecnoloxía de conectividade | Sen fíos (Bluetooth 5.1) |
| Fonte de enerxía | Corded Electric (12-24V Car Socket) |
| Portos de carga | PD 20W (Type-C), QC3.0 18W (USB-A) |
| Características especiais | Fast Charging, Bass Boost, Hands-free Calling, CVC Noise Cancellation |
| Material | Plastic, Iron |
4. Instrucións de configuración
4.1 Configuración 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.
- Confirmar: Once matched, the display will stop flashing.

Figure 2: Visual guide for connecting the FM transmitter to your car's radio.
4.3 Emparejamento Bluetooth
- After setting the FM frequency, enable Bluetooth on your mobile device.
- Busca dispositivos Bluetooth dispoñibles e seleccione "C81" da lista.
- 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. Instrucións de funcionamento
5.1 Reprodución 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 Chamadas mans libres
The transmitter features a built-in microphone and CVC noise cancellation for clear hands-free calls.
- Responder chamada: Press the green phone button once to answer an incoming call.
- Rexeitar a chamada: Long press the green phone button to reject an incoming call.
- Colgar: Press the green phone button once during a call to hang up.
- Volver 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 Dispositivos de carga
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 Axustar o volume e a frecuencia
The large rotary knob on the transmitter serves dual functions:
- Axuste de volume: In music playback mode, rotate the knob left or right to decrease or increase the volume.
- Ajuste de frecuencia: 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.
Función de aumento de graves 5.5
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. Mantemento
- Manteña o dispositivo limpo cun pano suave e seco. Evite o uso de produtos químicos agresivos ou produtos de limpeza abrasivos.
- 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 Solución de problemas
| Problema | Posible Solución |
|---|---|
| Sen alimentación ao transmisor. |
|
| Son estático ou de mala calidade. |
|
| O Bluetooth non se conecta. |
|
| A carga rápida non funciona. |
|
8. Garantía e soporte
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 websitio.
9. Información de seguridade
- Non desmonte, repare nin modifique o produto.
- Do not expose the product to extreme temperatures, direct sunlight, or humid environments.
- Manteña o produto lonxe da auga e outros líquidos.
- Evite deixar caer ou someter o produto a fortes impactos.
- 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.