1. Introduction
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. Product Features
- Bluetooth 5.3 Technology: 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.
- Voice Assistant 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.
Figure 4: Internal 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. Specifications
| Attribute | Value |
|---|---|
| Brand | LENCENT |
| Model Name | BC87 |
| Bluetooth Version | V5.3 |
| Product Input | DC 12-24V |
| Frequency Range | 87.5-108.0MHZ |
| FM Transmitter Distance | Approx. 3M |
| Wireless Distance | Approx. 10M |
| U Disk Port Support | Up to 32G U disk music reading |
| PD Output (USB-C) | 5V/3A, 9V/3A, 12V/2.5A (30W Max.) |
| QC 3.0 Output (USB-A) | 5V/3A, 9V/2A, 12V/1.5A (18W) |
| Total Product Power | 48W Max. |
| Item Weight | 60g |
| Item Size | 9.6cm * 5.8cm * 5.3cm |
| Material | ABS |
| Certification | CE, FCC, RoHS |
Figure 7: Detailed product parameters and component labels.
4. Package Contents
The package typically includes:
- 1 x LENCENT BC87 Bluetooth FM Transmitter
- 1 x User Manual
5. Setup Guide
- Insert into Car Socket: Plug the LENCENT BC87 FM Transmitter into your car's 12V-24V cigarette lighter socket. The device will power on automatically.
- Tune FM Frequency:
- 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 Pairing:
- On your smartphone, enable Bluetooth and search for available devices.
- 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. Operating Instructions
6.1 Music Playback
- 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 Playback: Insert a U disk (up to 32GB) containing MP3/WMA/WAV/FLAC audio files into the designated USB port. The device will automatically detect and play music from the U disk.
- Bass Mode: 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 Hands-Free Calling
- Answer Call: Press the call button (usually indicated by a phone icon) once to answer an incoming call.
- Reject Call: Press and hold the call button to reject an incoming call.
- Hang Up: Press the call button once during a call to end it.
- Redial Last Number: Double-press the call button to redial the last outgoing number.
Figure 9: Dedicated buttons for hands-free call management.
6.3 Voice Assistant
- 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 Charging Devices
- 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 Ambient Lighting
- 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. Troubleshooting
| Problem | Possible Solution |
|---|---|
| Static or poor audio quality | 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 not connecting | 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. |
| Device not powering on | 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. |
| Slow charging or no charging | 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. Maintenance
- Keep the device dry and clean. Avoid exposure to moisture or extreme temperatures.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Ensure the cigarette lighter socket is free of debris before inserting the transmitter.
9. User Tips
- 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. Warranty and 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 website.
