DEMICEA LibreFit B8 True Wireless Bone Conduction Headphones User Manual

1. Introduction and Overview

Thank you for choosing the DEMICEA LibreFit B8 True Wireless Bone Conduction Headphones. These open-ear earphones are designed to provide high-quality audio while allowing you to remain aware of your surroundings. Featuring advanced bone conduction technology, Bluetooth 5.3 connectivity, and a durable, water-resistant design, the LibreFit B8 is ideal for various activities including cycling, yoga, and workouts.

2. What's in the Box

Please check the package contents to ensure all items are present:

• LibreFit B8 Earphones (x2)
• Charging Case (x1)
• USB to Type C Charging Cable (x1)
• User Manual (x1)

3. Product Features

Genuine Bone Conduction Technology

The LibreFit B8 headphones utilize true OWS bone conduction design for powerful and authentic audio. Sonic Direct technology prevents sound leakage for privacy, while Tone Terra and Sonic Boost optimize the acoustic space for a clear, realistic HI-FI audio experience.

Image 1: Internal view of the LibreFit B8 bone conduction driver, illustrating Sonic Direct for sound leakage prevention, Tone Terra for clearer vocals, and Sonic Boost for enhanced bass.

Lightweight and Comfortable Design

Each earbud weighs just 0.28 oz (7.9g), featuring a 0.7 mm memory-flex titanium alloy frame and soft silicone for all-day comfort. The lightweight frame adapts to ear curves, maintaining shape for extended wear and offering a sleek, comfortable fit.

Extended Battery Life

These open-ear headphones offer up to 60 hours of total music playback with the charging case. A 5-minute quick charge provides 1 hour of playback, while a full 1.5-hour charge delivers up to 15 hours of continuous listening.

Image 2: Visual representation of the LibreFit B8's battery performance, indicating 15 hours on a single charge and 60 hours total with the charging case, along with quick charge benefits.

IP68 Water Resistance

The LibreFit B8 earphones feature an IP68 water resistance rating, making them resistant to sweat and rain. An added hydrophobic coating enhances water resistance, prevents water buildup, and allows for easy cleaning, ensuring long-lasting performance.

Image 3: The LibreFit B8 headphones shown with water, emphasizing their IP68 water resistance and hydrophobic coating for protection against sweat and water.

Advanced Bluetooth 5.3 and Audio Support

Equipped with cutting-edge Bluetooth 5.3, the LibreFit B8 offers a 48 Mbit/s transfer rate, a 300 m range, and just 60 ms latency for smooth music synchronization. With AAC/SBC audio support and advanced noise interference reduction, these earbuds deliver an exceptional audio experience.

Image 4: A detailed view of the Bluetooth 5.3 chip, representing the advanced connectivity and low latency of the LibreFit B8 headphones.

4. Setup

Charging the Headphones and Case

Before first use, fully charge the LibreFit B8 headphones and their charging case. Connect the provided USB to Type C charging cable to the charging case and a power source. The indicator light on the case will show charging status. A full charge for the case takes approximately 1.5 hours.

Pairing with a Device

To pair your LibreFit B8 headphones with a Bluetooth-enabled device:

1. Take the earphones out of the charging case. They will automatically enter pairing mode, indicated by flashing LED lights.
2. On your device (e.g., smartphone, tablet), go to the Bluetooth settings.
3. Find "B8" in the list of available devices and select it to connect.
4. Once connected, the LED lights on the earphones will stop flashing.

Image 5: Step-by-step guide for pairing the LibreFit B8 headphones with a mobile device via Bluetooth settings.

5. Operating Instructions

Wearing the Headphones

To ensure optimal sound and comfort, correctly position the LibreFit B8 headphones:

1. Gently place the earhook over the top of your ear.
2. Adjust the speaker part so it rests comfortably in front of your ear canal, allowing for open-ear listening.

Image 6: Visual instructions on how to properly wear the LibreFit B8 headphones for secure fit and optimal audio delivery.

Controls

The LibreFit B8 headphones feature intuitive button controls for music and calls:

• Play/Pause Music: Single click on the L or R button.
• Volume Down: Double click on the L button.
• Volume Up: Double click on the R button.
• Previous Track: Triple click on the L button.
• Next Track: Triple click on the R button.
• Answer/End Call: Single click on the L or R button.
• Reject Call: Double click on the L or R button.
• Switch to Phone Speaker: Long press on the L or R button for 2 seconds during a call.

Image 7: Detailed control scheme for the LibreFit B8 headphones, outlining actions for music and calls.

6. Maintenance

To ensure the longevity and optimal performance of your LibreFit B8 headphones, follow these maintenance guidelines:

• Cleaning: Wipe the earphones and charging case with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used. Due to their IP68 rating, the earphones can withstand direct cleaning with water, but ensure they are completely dry before placing them back in the charging case.
• Storage: Store the headphones in their charging case when not in use to protect them from dust, scratches, and accidental damage. Avoid storing them in extreme temperatures or high humidity.
• Battery Care: To preserve battery life, avoid fully discharging the headphones and case frequently. Charge them regularly, even if not in constant use.

7. Troubleshooting

If you encounter any issues with your LibreFit B8 headphones, please refer to the following common solutions:

• Cannot Pair: Ensure the earphones are charged and in pairing mode (flashing LED). Turn off and on your device's Bluetooth, then try searching again. If the issue persists, try resetting the earphones (refer to the full user manual for specific reset instructions).
• No Sound/Low Volume: Check the volume levels on both the earphones and your connected device. Ensure the earphones are correctly positioned on your ears.
• Intermittent Connection: Move closer to your connected device to ensure you are within the Bluetooth range (up to 300m in open areas). Avoid environments with strong electromagnetic interference.
• Charging Issues: Ensure the charging cable is securely connected to both the case and the power source. Check if the charging contacts on the earphones and inside the case are clean and free of debris.

8. Specifications

9. Warranty and Support

DEMICEA products are designed with quality and reliability in mind. For warranty information, technical support, or any questions regarding your LibreFit B8 headphones, please refer to the contact details provided on the product packaging or visit the official DEMICEA website.