1. Introduction
Thank you for choosing the DEMICEA LibreFit B19 Open Ear Earbuds. These true wireless headphones are designed to provide a comfortable listening experience while keeping you aware of your surroundings. Featuring air conduction technology, IPX5 water resistance, and intuitive touch controls, they are ideal for workouts, daily commutes, and general use. This manual will guide you through the setup, operation, and maintenance of your new earbuds.
2. What's in the Box
- LibreFit B19 Earphones (x2)
- Wireless Charging Case
- USB-C Charging Cable
- User Guide (x1)
Image: The complete package contents of the DEMICEA LibreFit B19 Open Ear Earbuds, neatly arranged in their box.
3. Setup
3.1. Charging the Earbuds and Case
Before first use, fully charge your earbuds and charging case. Connect the provided USB-C cable to the charging port on the case and a power source. The LED indicator on the case will show charging status.
Image: The black charging case for the LibreFit B19 earbuds, with a USB-C cable plugged in, indicating it is charging. A blue LED light is visible on the front of the case.
3.2. Wearing the Earbuds
The LibreFit B19 earbuds feature an open-ear design with earhooks for a secure and comfortable fit. Gently place the earbud over your ear, ensuring the speaker rests near your ear canal without entering it, and the earhook wraps securely around the back of your ear.
Image: A person wearing the DEMICEA LibreFit B19 earbuds, showing how the earhooks fit around the ear for stability and comfort, allowing awareness of surroundings.
Image: A visual guide demonstrating the two-step process of correctly placing the open-ear earbuds onto the ear, ensuring a proper and comfortable fit.
3.3. Pairing with Your Device
1. Open the charging case. The earbuds will automatically enter pairing mode (indicated by flashing LED lights).
2. On your device (smartphone, tablet, etc.), enable Bluetooth.
3. Search for available Bluetooth devices and select "B19" from the list.
4. Once connected, the earbuds' LED indicators will stop flashing.
Image: A hand holding a smartphone displaying its Bluetooth settings, with the 'B19' device listed as connected, illustrating the pairing process for the earbuds.
Video: An official product video from DEMICEA demonstrating the features and usage of the LibreFit B19 Open Ear Headphones, including how to wear and connect them.
4. Operating the Earbuds
4.1. Touch Controls
The LibreFit B19 earbuds feature intuitive touch controls on each earbud. Refer to the diagram below for common functions:
- Play/Pause: Double click on the L or R earbud.
- Previous Track: Triple click on the L earbud.
- Next Track: Triple click on the R earbud.
Note: To avoid accidental presses, this model does not have a volume control function directly on the earbuds. You need to adjust the volume on your connected device.
Image: A visual representation of the touch controls on the LibreFit B19 earbuds, detailing actions for play/pause, previous track, and next track.
4.2. Call Management
- Answer/End Call: Double click on either earbud.
- Reject Call: Press and hold either earbud for 2 seconds.
- Activate Voice Assistant: Press and hold either earbud for 3 seconds (when not on a call).
5. Features and Specifications
5.1. Key Features
- Comfortable Open-Ear Design: Lightweight (0.26 oz per earbud) with a 0.77mm titanium alloy frame and silicone shell for extended wear comfort.
- High-Quality Audio: Equipped with 15mm oval acoustic units, AeroDirect directional sound field technology to prevent sound leakage, and AeroBoost digital sound enhancement for clear vocals.
- Clear Calls: Dual MEMS microphones with directional sound pickup and ClearTalk Tech smart noise-canceling technology reduce ambient noise for enhanced call clarity.
- IPX5 Water Resistance: Hydrophobic material on microphone and speaker grilles, plus dual-layer nanotech coating, provides comprehensive protection against sweat and rain.
- Long Battery Life: Up to 10 hours of playback on a single charge, and up to 30 hours total with the charging case. Fast-charging technology provides 50 minutes of music from a 5-minute charge.
- Bluetooth 5.3: Ensures stable, low-latency connectivity (below 60 milliseconds) and supports A2DP and HFP protocols.
Image: A person smiling while wearing the DEMICEA LibreFit B19 earbuds, illustrating the experience of enjoying detailed sound through the open-ear design.
Image: A person in athletic wear, demonstrating the multi-scenario waterproofing of the LibreFit B19 earbuds during a workout, with an IPX5 rating visible.
5.2. Technical Specifications
| Feature | Specification |
|---|---|
| Model Name | LibreFit B19 |
| Connectivity Technology | Wireless, Bluetooth, Air Conduction |
| Bluetooth Version | 5.3 |
| Water Resistance Level | IPX5 |
| Battery Life (Earbuds) | Up to 10 hours (single charge) |
| Battery Life (with Case) | Up to 30 hours |
| Charging Time | 2 hours (case) |
| Audio Driver Size | 15mm (oval acoustic units) |
| Weight (single earbud) | 0.26 ounces |
| Control Type | Touch Control |
| Compatible Devices | Cellphones, Desktops, Laptops, Tablets |
6. Maintenance
- Cleaning: Regularly wipe the earbuds and charging case with a soft, dry cloth. Avoid using abrasive materials or harsh chemicals.
- Drying: After exposure to sweat or rain, ensure the earbuds are completely dry before placing them back into the charging case to prevent damage to the charging contacts.
- Storage: Store the earbuds and case in a cool, dry place away from extreme temperatures and direct sunlight.
- Battery Care: To prolong battery life, avoid fully discharging the earbuds and case frequently. Charge them regularly, even if not in constant use.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Place them in the case, close, then reopen to re-enter pairing mode. Check your device's Bluetooth settings and forget/remove "B19" before re-pairing. |
| No sound or low volume | Check the volume level on your connected device. Ensure earbuds are properly seated on your ears. Re-pair the earbuds. |
| Charging case not charging | Ensure the USB-C cable is securely connected to both the case and the power source. Try a different cable or power adapter. |
| Intermittent connection | Ensure your device is within the Bluetooth range (approx. 10 meters). Avoid obstacles between your device and earbuds. Disconnect and reconnect the earbuds. |
8. Warranty and Support
Your DEMICEA LibreFit B19 Open Ear Earbuds come with a standard manufacturer's warranty. For detailed warranty information, product support, or to report any issues, please refer to the contact information provided in the After-sales Support Card included in your package or visit the official DEMICEA website. Please retain your proof of purchase for warranty claims.
For further assistance, you may contact customer support via the email address provided on the After-sales Support Card: support@moonpanda-tech.com.
