1. Produk Lebihview
The LEXIN LX-B4FM is a Bluetooth v5.0 HiFi Stereo Headset designed for motorcycle use. It enables hands-free mobile phone calls, high-fidelity stereo music playback, FM radio reception, and wireless voice instructions from Bluetooth-enabled GPS navigation units. The system supports conference intercom conversations for up to 10 riders, with an intercom range of 2000 meters (1.2 miles) for a group, and 500 meters for two riders.
Key features include a Qualcomm chip for reliable connectivity, extended battery life, clear sound, and secure data transmission. It also offers music sharing capabilities and advanced noise cancellation technology.
2. Pengaturan dan Instalasi
2.1 Isi Paket
Sebelum pemasangan, pastikan semua komponen tersedia:
- LEXIN LX-B4FM Main Unit
- Boom Microphone (for open-face or flip-face helmets)
- Mikrofon Tombol (untuk helm full-face)
- Pembicara
- Braket Pemasangan dan Perekat
- Kabel Pengisian Daya USB
2.2 Pemasangan di Helm
The LX-B4FM is compatible with various helmet types. Choose the appropriate microphone for your helmet style:
- Mikrofon Boom: Recommended for open-face or flip-face helmets. Position the microphone close to your mouth for optimal voice pickup.
- Mikrofon Tombol: Suitable for full-face helmets. Mount it inside the helmet near the mouth area.
Secure the main unit to the side of your helmet using the provided clamp or adhesive mount. Route the speaker and microphone cables neatly within the helmet padding to avoid discomfort or interference.

Image: The LEXIN B4FM unit and its various components, including the main module, speakers, and two types of microphones, ready for helmet installation.
2.3 Mengisi Daya Perangkat
Before first use, fully charge the LX-B4FM unit. Connect the provided USB charging cable to the unit and a power source. A full charge typically takes approximately 3 hours. The 800mAh battery provides up to 15 hours of talk or music playback time and over 168 hours of standby time.

Image: A LEXIN B4FM unit mounted on a helmet, with icons indicating 15 hours talk time, 15 hours music time, and 3 hours for a full charge.
2.4 Pasangan Awal
To pair the LX-B4FM with your mobile phone or another intercom unit:
- Ensure the LX-B4FM is powered off.
- Tekan dan tahan tombol Daya hingga indikator LED berkedip merah dan biru, yang menandakan mode pemasangan.
- On your mobile phone, enable Bluetooth and search for available devices. Select 'LEXIN B4FM' from the list.
- Setelah terhubung, indikator LED akan berkedip biru perlahan.
The LX-B4FM supports universal pairing with most motorcycle headsets, including other LEXIN models (G2P, GTX, G16, MeshCom, Novus) and various other brands.

Image: A LEXIN B4FM unit mounted on a helmet, illustrating its capability for universal pairing with other brands of intercom systems.
3. Petunjuk Pengoperasian
3.1 Daya Hidup/Mati
- Nyalakan: Press and hold the Power button for approximately 3 seconds until the LED flashes blue.
- Matikan: Press and hold the Power button for approximately 5 seconds until the LED flashes red and then turns off.
3.2 Komunikasi Interkom
The LX-B4FM supports group intercom for up to 10 riders, with optimal performance for groups of 4. The maximum range is 2000 meters (1.2 miles) for a group, and 500 meters for two riders.
- Inisiasi Interkom: After pairing with other LX-B4FM units, a short press of the Intercom button will initiate a conversation.
- Akhiri Interkom: Tekan tombol Interkom lagi untuk mengakhiri percakapan.

Image: An illustration showing multiple motorcycles on a winding road, demonstrating the LEXIN B4FM's intercom range for up to 10 riders (best for 4) over 1.2 miles, with a specific range of 500m for two riders.
3.3 Pemutaran dan Berbagi Musik
Enjoy HiFi stereo music through the Mylar coaxial speakers. The LX-B4FM features DSP/CVC technology for clear audio quality even at speeds up to 120 km/h.
- Putar/Jeda Musik: Tekan sebentar tombol multifungsi.
- Lagu Berikutnya: Tekan sebentar tombol Volume Naik.
- Lagu Sebelumnya: Tekan sebentar tombol Volume Turun.
- Berbagi Musik: Two riders can enjoy the same song by double-clicking the Power button on one of the paired units.

Image: Two riders on motorcycles, illustrating the music sharing feature of the LEXIN B4FM, allowing them to enjoy the same song simultaneously.
3.4 Phone Calls and Voice Assistant
When paired with your mobile phone, the LX-B4FM allows for hands-free communication.
- Menjawab Panggilan: Tekan sebentar tombol multifungsi.
- Akhiri Panggilan: Tekan sebentar tombol multifungsi.
- Tolak Panggilan: Tekan dan tahan tombol Multifungsi selama 2 detik.
- Panggil Ulang Nomor Terakhir: Klik dua kali tombol Multifungsi.
- Aktifkan Asisten Suara (Siri/Google Assistant): Tekan dan tahan tombol Multifungsi selama 2 detik (saat tidak sedang melakukan panggilan).
3.5 Radio FM
The LX-B4FM includes an integrated FM radio.
- Turn FM Radio On/Off: Tekan dan tahan tombol FM selama 2 detik.
- Stasiun Pemindaian: Short press the Volume Up or Volume Down button to tune to the next/previous station.
4. Pemeliharaan
4.1 Pelapisan kedap air
The LX-B4FM helmet communication system is designed with IP67 waterproof ports and plugs, ensuring reliable performance in various weather conditions, including temperatures as low as -22°F (-30°C). While it is waterproof, avoid submerging the unit in water for extended periods.

Image: A LEXIN B4FM unit mounted on a helmet, with water droplets on the helmet and windshield, emphasizing its waterproof capabilities and ability to function in rain.
4.2 Perawatan Baterai
- Untuk memperpanjang masa pakai baterai, hindari sering-sering menguras daya baterai sepenuhnya.
- Charge the unit regularly, even if not in use for extended periods (e.g., once every 3 months).
- Simpan unit di tempat sejuk dan kering bila tidak digunakan.
4.3 Pembersihan
Lap unit dengan lembut, damp kain. Jangan gunakan bahan kimia keras atau pembersih abrasif.
5. Penyelesaian masalah
If you encounter issues with your LX-B4FM, refer to the following common problems and solutions:
- Tidak Ada Daya: Ensure the unit is fully charged. Connect it to a charger and check if the charging indicator lights up.
- Tidak Ada Suara dari Speaker: Check that the speaker cables are securely connected to the main unit. Verify volume levels on both the LX-B4FM and your connected device.
- Cannot Pair with Phone/Intercom: Ensure both devices are in pairing mode. Turn off and restart both devices, then attempt pairing again. Clear previous pairings on your phone if necessary.
- Interkom Sering Terputus: Ensure units are within the specified intercom range. Obstacles and terrain can affect range. Check for low battery on either unit.
- Kualitas Audio Buruk/Kebisingan: Ensure the microphone is positioned correctly and not obstructed. Check for strong electromagnetic interference.
- Tombol Tidak Responsif: Try resetting the device by pressing and holding the Power button for an extended period (e.g., 10-15 seconds) or by charging it.
6. Spesifikasi Teknis
| Nomor Model | LX-B4FM |
| Versi Bluetooth | Bahasa Inggris v5.0 |
| Jangkauan Interkom (Grup) | Up to 2000 meters (1.2 miles) for 10 riders (best for 4) |
| Jangkauan Interkom (2 Pengendara) | Hingga 500 meter |
| Kapasitas Baterai | 800mAh Lithium Metal |
| Waktu Bicara | Hingga 15 jam |
| Waktu Pemutaran Musik | Hingga 15 jam |
| Waktu Siaga | Lebih dari 168 jam |
| Waktu Pengisian Daya | Sekitar 3 jam |
| Peringkat Tahan Air | Tingkat IP67 |
| Suhu Operasional | -22°F hingga 122°F (-30°C hingga 50°C) |
| Metode Kontrol | Sentuh, Suara |
| Bahan | Plastik |
| Berat Barang | 0.59 Kilogram (1.3 pon) |
7. Garansi dan Dukungan
7.1 Informasi Garansi
LEXIN products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official LEXIN websitus. Simpan bukti pembelian Anda untuk klaim garansi.
7.2 Dukungan Pelanggan
If you require further assistance, have questions, or encounter issues not covered in this manual, please contact LEXIN customer support. You can typically find contact information, FAQs, and additional resources on the official LEXIN weblokasi:





