1. Product Overview
The Langsdom BE20 are open-ear bone conduction headphones designed for sports and active lifestyles. They feature an integrated 16GB MP3 player, Bluetooth 5.4 connectivity, and IP68 waterproofing, making them suitable for various environments, including swimming.
Key Features:
- Bone Conduction Technology: Delivers audio through bone vibrations, keeping your ears open to ambient sounds for enhanced safety during outdoor activities.
- Dual Playback Modes: Seamlessly switch between Bluetooth 5.4 wireless streaming and the built-in 16GB MP3 player for phone-free music.
- Extended Battery Life: Up to 8.5 hours in Bluetooth mode or 4.5 hours in MP3 mode on a single 2.5-hour charge.
- IP68 Waterproof Rating: Fully submersible and sweat-resistant, suitable for swimming, rain, and intense workouts.
- Comfortable & Durable Design: Lightweight, ergonomic construction with a flexible, high-strength titanium alloy band for a secure and comfortable fit that resists deformation.
- Clear Communication: Features AI call noise reduction for clear hands-free calls.
The open-ear design ensures comfort and situational awareness during use.
The flexible titanium alloy band provides a stable and comfortable fit.
2. Package Contents
Please check the box for the following items:
- Langsdom BE20 Bone Conduction Headphones
- Magnetic Charging/Data Cable
- Adjustable Cord
- Pair of Foam Earplugs
- Storage Bag
- User Manual (this document)
Illustration of all items included in the Langsdom BE20 package.
3. Setup
3.1 Charging the Device
- Connect the magnetic charging cable to the charging port on the headphones.
- Plug the USB end of the cable into a standard USB power adapter (not included) or a computer's USB port.
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged). A full charge takes approximately 2.5 hours.
3.2 Initial Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power/Multi-function button until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your smartphone or Bluetooth-enabled device, go to Bluetooth settings and search for available devices.
- Select "Langsdom BE20" from the list.
- Once connected, the LED indicator will flash blue slowly.
3.3 Transferring MP3 Files
The BE20 headphones have a built-in 16GB memory for MP3 playback without a phone.
- Connect the headphones to your computer using the magnetic charging/data cable.
- The headphones will appear as a removable disk drive on your computer.
- Drag and drop your MP3 audio files into the headphone's storage folder.
- It is recommended to use MP3 format files with an audio bitrate not exceeding 1000 kbps and a file size less than 10 MB for optimal performance.
- Safely eject the device from your computer before disconnecting the cable.
4. Operating Instructions
4.1 Power On/Off
- Power On: Press and hold the Power/Multi-function button for 3 seconds.
- Power Off: Press and hold the Power/Multi-function button for 5 seconds.
4.2 Switching Between Bluetooth and MP3 Modes
Press the Mode button (usually indicated by 'M' or a similar icon) to switch between Bluetooth and MP3 playback modes.
The built-in 16GB memory allows for music playback without needing a connected phone.
4.3 Music Playback
- Play/Pause: Press the Power/Multi-function button once.
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
4.4 Volume Control
- Volume Up: Press the Volume Up (+) button once.
- Volume Down: Press the Volume Down (-) button once.
4.5 Call Management
- Answer/End Call: Press the Power/Multi-function button once.
- Reject Call: Press and hold the Power/Multi-function button for 2 seconds.
- Voice Assistant: Double-press the Power/Multi-function button (when not on a call).
AI call noise reduction ensures clear communication even in noisy environments.
Enjoy extended listening sessions with up to 8.5 hours of battery life.
5. Maintenance
5.1 Cleaning
- Wipe the headphones with a soft, damp cloth.
- Do not use abrasive cleaners or solvents.
- Ensure the charging port is dry before charging.
5.2 Storage
- Store the headphones in the provided storage bag when not in use.
- Avoid exposing the headphones to extreme temperatures or direct sunlight for prolonged periods.
5.3 Waterproofing Guidelines (IP68)
The Langsdom BE20 headphones are rated IP68, meaning they are protected against continuous immersion in water up to 2 meters for a specified duration. To maintain waterproofing:
- Ensure the charging port is clean and free of debris before immersion.
- Rinse the headphones with fresh water after exposure to saltwater or chlorinated water, then dry thoroughly.
- Do not charge the headphones if they are wet.
The IP68 rating allows for use in water depths up to 2 meters.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones for at least 30 minutes. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; device's Bluetooth off. | Ensure headphones are in pairing mode (flashing red/blue). Turn on Bluetooth on your device. Move closer to the headphones. |
| No sound from MP3 player. | Incorrect mode; no MP3 files; corrupted files. | Switch to MP3 mode. Ensure MP3 files are transferred correctly. Check file format and bitrate. |
| Poor call quality. | Weak signal; environmental noise. | Move to an area with better signal. Ensure microphone is not obstructed. |
| Headphones not recognized by computer. | Faulty cable; driver issue. | Try a different USB port or cable. Restart computer. |
7. Specifications
| Feature | Specification |
|---|---|
| Model Name | BE20 |
| Brand | Langsdom |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Ear Placement | Open-Ear |
| Form Factor | Open-Ear |
| Built-in Storage | 16GB MP3 Player |
| Waterproof Rating | IP68 |
| Impedance | 8 Ohms |
| Battery Life (Bluetooth) | Up to 8.5 hours |
| Battery Life (MP3) | Up to 4.5 hours |
| Charging Time | Approx. 2.5 hours |
| Color | Black/Grey |
8. Warranty and Support
8.1 Warranty Information
The Langsdom BE20 Bone Conduction Headphones come with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
8.2 Customer Support
For technical support, warranty claims, or any questions regarding your Langsdom BE20 headphones, please contact our customer service team. Refer to the contact information provided on the product packaging or the official Langsdom website.
