Introduction
Image: The Langsdom BN20 Bluetooth Headset, showcasing its ergonomic design.
Thank you for choosing the Langsdom BN20 Bluetooth Headset. This manual provides detailed instructions for setting up, operating, and maintaining your headset. Please read this manual carefully before use to ensure optimal performance and longevity of your device.
Package Contents
Verify that all items listed below are included in your package:
- Langsdom BN20 Bluetooth Headset
- USB Type-C Charging Cable
- Silicone Ear Tips (various sizes)
- Carrying Case
- User Manual (this document)
Image: Contents of the Langsdom BN20 package, including the headset, USB-C charging cable, silicone ear tips, and a carrying case.
Product Overview
Familiarize yourself with the buttons and ports on your Langsdom BN20 headset:
Image: Detailed diagram illustrating the location and function of each button and port on the Langsdom BN20 headset.
- On/Off Switch: Slide to power the headset on or off.
- Volume + / Next Song: Press briefly to increase volume; press and hold to skip to the next song.
- Volume - / Previous Song: Press briefly to decrease volume; press and hold to go to the previous song.
- Play/Pause / Call Button: Press once to play/pause music or answer/end a call. Press and hold to reject a call.
- USB Type-C Charging Port: Connect the provided USB-C cable for charging.
- Microphone Mute Button: Press to mute/unmute the microphone during a call. Press and hold for 3 seconds to activate voice assistant (Siri/Google Assistant).
Image: The ergonomic design of the headset, suitable for comfortable wear on either ear.
Setup
1. Charging the Headset
Before first use, fully charge your headset. A full charge takes approximately 2 hours.
- Connect the USB Type-C charging cable to the headset's charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The indicator light will show charging status (e.g., red for charging, blue for fully charged).
Image: Illustration of the headset's battery capacity and expected usage times after a 2-hour charge.
2. Pairing with a Single Device
- Ensure the headset is turned off.
- Slide the On/Off switch to the "On" position. The indicator light will flash red and blue alternately, indicating it is in pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "BN20" in the list of available Bluetooth devices.
- Select "BN20" to connect. Once connected, the indicator light will flash blue slowly, and you will hear a confirmation tone.
3. Multipoint Connection (Connecting to Two Devices Simultaneously)
The Langsdom BN20 supports connecting to two Bluetooth devices at the same time.
- Pair the headset with the first device following the "Pairing with a Single Device" steps.
- Once connected, turn off the Bluetooth function on the first device.
- Turn off the headset, then turn it back on to enter pairing mode again (red and blue indicator light flashing).
- Pair the headset with the second device.
- After successful pairing with the second device, re-enable Bluetooth on the first device. The headset should automatically reconnect to both devices.
Image: The headset connected to two mobile phones, illustrating the multipoint connection capability.
Operating Instructions
Power On/Off
- Power On: Slide the On/Off switch to "On".
- Power Off: Slide the On/Off switch to "Off".
Call Management
- Answer Call: Press the Play/Pause / Call button once.
- End Call: Press the Play/Pause / Call button once during a call.
- Reject Call: Press and hold the Play/Pause / Call button for 2 seconds when an incoming call rings.
- Mute/Unmute Microphone: Press the Microphone Mute button once during a call.
Image: Demonstrates the microphone mute function, useful for privacy during calls or meetings.
Image: The dual microphone with CVC 8.0 noise cancellation ensures clear conversations even in noisy environments.
Music Playback
- Play/Pause: Press the Play/Pause / Call button once.
- Volume Up: Press the Volume + button.
- Volume Down: Press the Volume - button.
- Next Song: Press and hold the Volume + button.
- Previous Song: Press and hold the Volume - button.
Voice Assistant
- Activate Voice Assistant: Press and hold the Microphone Mute button for 3 seconds to activate Siri or Google Assistant on your connected device.
Maintenance
To ensure the longevity and optimal performance of your Langsdom BN20 headset, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the headset. Do not use abrasive cleaners or solvents.
- Storage: Store the headset in its carrying case when not in use to protect it from dust and damage.
- Temperature: Avoid exposing the headset to extreme temperatures (hot or cold) or high humidity.
- Water Resistance: The headset is not water-resistant. Avoid contact with liquids.
- Charging: Charge the headset regularly, even if not in frequent use, to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headset does not power on. | Low battery. | Charge the headset for at least 30 minutes. |
| Cannot pair with device. | Bluetooth is off on the device; headset not in pairing mode; too many devices connected. | Ensure Bluetooth is enabled on your device. Make sure the headset is in pairing mode (flashing red/blue). Disconnect other Bluetooth devices. |
| No sound or low volume. | Volume too low on headset or device; headset not connected properly. | Adjust volume on both the headset and your connected device. Reconnect the headset. |
| Microphone not working or low volume. | Microphone is muted; headset not selected as input device. | Ensure the microphone is not muted. Check your device's audio settings to confirm the headset is selected as the input device. |
| Intermittent connection. | Too far from device; interference; low battery. | Move closer to your device (within 10 meters). Avoid strong electromagnetic interference. Charge the headset. |
Specifications
- Model: BN20
- Bluetooth Version: 5.0
- Bluetooth Range: Up to 10 meters (33 feet)
- Battery Capacity: 150mAh
- Call Time: Up to 12 hours
- Music Playback Time: Up to 27 hours
- Standby Time: Up to 40 days
- Charging Time: Approximately 2 hours
- Noise Cancellation: CVC 8.0 (for microphone)
- Microphone: Dual microphone with mute function
- Connectivity: Wireless (Bluetooth)
- Charging Port: USB Type-C
- Weight: 12 grams
- Material: Plastic
- Water Resistance: Not water-resistant
Image: Internal view highlighting the Qualcomm CSR chipset and Bluetooth 5.0 technology.
Warranty and Support
For warranty information and customer support, please refer to the warranty card included in your package or visit the official Langsdom website. If you encounter any issues not covered in this manual, please contact Langsdom customer service for assistance.