1. Introduktion
The LENCENT BC87 Bluetooth 5.3 FM Transmitter is designed to enhance your in-car audio experience and provide convenient charging solutions. This device allows you to stream music wirelessly from your smartphone to your car's FM radio, make hands-free calls, and rapidly charge your mobile devices with its advanced PD 30W and QC 3.0 ports. Featuring Bluetooth 5.3 technology, dual microphones with CVC8.0 noise reduction, and customizable ambient lighting, the BC87 ensures stable connections, clear audio, and efficient power delivery.

Figure 1: LENCENT BC87 Bluetooth FM Transmitter
2. Produktfunktioner
- Bluetooth 5.3-teknologi: Offers faster pairing, more stable connection, and lower latency for an improved audio and call experience. The device intelligently identifies and reconnects to the last paired device.
- Hi-Fi Music & Power Bass Mode: Delivers crystal clear music streaming. A dedicated BASS button allows for one-touch activation of a powerful bass mode.
- Advanced Fast Charging: Equipped with a PD 30W USB-C port and a QC 3.0 USB-A port, capable of charging compatible devices rapidly. Includes smart charge monitoring for protection against overload, overcharge, and short circuits.
- Dual Microphone & Clear Calling: Features dual microphones for omnidirectional voice pickup and CVC8.0 noise reduction with Digital Signal Processor (DSP) technology for clear, noise-free calls.
- Hands-Free Call Management: Supports one-touch buttons to answer, redial, hang up, or reject calls.
- Stemmeassistent support: Compatible with Siri and Google Assistant for intelligent voice control, including navigation app voice prompts.
- Compact Design with Customizable Lighting: Small form factor prevents obstruction of other car controls. Features physical buttons for easy operation and colorful breathing lights to set the mood, which can be turned off for focused driving.
- Multiple Music Input Modes: Supports music streaming via Bluetooth and U disk (up to 32GB).

Figure 2: Dual microphone for clear calls with ambient noise reduction.

Figure 3: PD 30W USB-C and QC 3.0 USB-A fast charging ports.

Figur 4: Intern view highlighting Bluetooth 5.3 chip for stable connection.

Figure 5: Hi-Fi Stereo and Power Bass mode for enhanced music experience.

Figure 6: Customizable colorful lighting and support for Siri, Bixby, and Google Assistant.
3. Specifikationer
| Attribut | Værdi |
|---|---|
| Mærke | LENCENT |
| Modelnavn | BC87 |
| Bluetooth version | V5.3 |
| Produkt input | DC 12-24V |
| Frekvensområde | 87.5-108.0MHZ |
| FM-senderafstand | Ca. 3 mio |
| Trådløs afstand | Ca. 10 mio |
| U Disk Port Support | Up to 32G U disk music reading |
| PD-udgang (USB-C) | 5V/3A, 9V/3A, 12V/2.5A (30W Maks.) |
| QC 3.0-udgang (USB-A) | 5V/3A, 9V/2A, 12V/1.5A (18W) |
| Samlet produktkraft | 48W Maks. |
| Varens vægt | 60 g |
| Varestørrelse | 9.6 cm * 5.8 cm * 5.3 cm |
| Materiale | ABS |
| Certificering | CE, FCC, RoHS |

Figure 7: Detailed product parameters and component labels.
4. Pakkens indhold
Pakken indeholder typisk:
- 1 x LENCENT BC87 Bluetooth FM Transmitter
- 1 x brugermanual
5. Opsætningsvejledning
- Sæt i bilstikkontakten: Plug the LENCENT BC87 FM Transmitter into your car's 12V-24V cigarette lighter socket. The device will power on automatically.
- Indstil FM-frekvens:
- Turn on your car's FM radio.
- Find an empty (unused) FM frequency on your car radio. This should be a frequency with no strong radio station signal, typically producing static.
- Adjust the FM frequency on the BC87 transmitter to match the empty frequency on your car radio. Use the "CH+" and "CH-" buttons on the device to adjust the frequency.
- Bluetooth-parring:
- Aktiver Bluetooth på din smartphone, og søg efter tilgængelige enheder.
- Select "BC87" from the list of devices to pair. Once paired, you will hear a confirmation tone, and the device will be ready for use.
- The device will automatically reconnect to the last paired phone when powered on.
Video 1: Demonstration of stable Bluetooth pairing and connection.
6. Betjeningsvejledning
6.1 Musikafspilning
- Bluetooth-streaming: Once paired, open your music app on your smartphone and start playing music. The audio will be transmitted to your car's FM radio.
- U-disk afspilning: Indsæt en U-disk (op til 32 GB) med MP3/WMA/WAV/FLAC-lyd files i den angivne USB-port. Enheden vil automatisk registrere og afspille musik fra U-disken.
- Bastilstand: Press the "BASS" button to activate or deactivate the enhanced bass sound effect.

Figure 8: Supports Bluetooth and U Disk for music playback.
6.2 Håndfri opkald
- Besvar opkald: Press the call button (usually indicated by a phone icon) once to answer an incoming call.
- Afvis opkald: Press and hold the call button to reject an incoming call.
- Læg på: Press the call button once during a call to end it.
- Genopkald sidste nummer: Double-press the call button to redial the last outgoing number.

Figure 9: Dedicated buttons for hands-free call management.
6.3 Stemmeassistent
- Activate your phone's voice assistant (Siri, Google Assistant, Bixby) by pressing the dedicated voice assistant button (if available, or typically a long press on the call button). You can then use voice commands for navigation, music control, etc.
6.4 Opladningsenheder
- Connect your device to the USB-C (PD 30W) or USB-A (QC 3.0) port using a compatible charging cable. The device will automatically detect and deliver the optimal charging speed.
6.5 Omgivende belysning
- The device features colorful breathing lights. Refer to the product diagram for the specific button to cycle through light modes or turn them off.

Figure 10: Customizable ambient lighting for in-car atmosphere.
7. Fejlfinding
| Problem | Mulig løsning |
|---|---|
| Statisk eller dårlig lydkvalitet | Ensure the FM frequency on the transmitter matches an empty frequency on your car radio. Try different empty frequencies. Adjust the volume on both your phone and car radio. |
| Bluetooth forbinder ikke | Make sure Bluetooth is enabled on your phone and "BC87" is selected. Restart the transmitter and your phone, then try pairing again. Ensure the device is within the 10M wireless range. |
| Enheden tænder ikke | Check if the car's cigarette lighter socket is receiving power (e.g., car ignition is on). Ensure the transmitter is fully inserted into the socket. |
| Langsom opladning eller ingen opladning | Verify that your charging cable is not damaged and is compatible with fast charging. Ensure your device supports PD or QC 3.0 for optimal speeds. Check if the car is running to provide sufficient power. |
| Call quality issues (echo, unclear voice) | Ensure the dual microphones are not obstructed. Reduce background noise in the car if possible. The CVC8.0 noise reduction should minimize most issues. |
8. Vedligeholdelse
- Hold enheden tør og ren. Undgå udsættelse for fugt eller ekstreme temperaturer.
- Rengør enheden med en blød, tør klud. Brug ikke skrappe kemikalier eller slibende rengøringsmidler.
- Ensure the cigarette lighter socket is free of debris before inserting the transmitter.
9. Brugertips
- For optimal audio quality, always try to find an FM frequency that is completely clear of any existing radio stations.
- The device's 48W max output power and PD 30W & QC3.0 fast charging interfaces ensure excellent performance for both audio transmission and device charging.
- Utilize the dual microphone and CVC8.0 noise cancellation for clearer hands-free phone calls, even in noisy environments.
- Remember that the colorful breathing lights can be turned off with a single button press if you prefer to focus solely on driving.
10. Garanti og support
This product is certified with CE, FCC, and RoHS standards, ensuring compliance with safety and environmental regulations. For specific warranty details and customer support, please refer to the information provided by your retailer or the LENCENT official webwebsted.





