Product Overview
The LC-dolida LC003 Bluetooth Sleep Mask is designed to provide a comfortable and immersive sleep experience. It integrates a 3D contoured eye mask with Bluetooth 5.2 headphones and built-in white noise sounds, ensuring total light blockage and personalized audio for relaxation.

Image: The LC-dolida Bluetooth Sleep Mask, showcasing its sleek design and integrated control panel.
Key Features:
- Integrated White Noise: Features 8 built-in relaxing white noise sounds for sleep without Bluetooth connection.
- Total Light Blockout: Full coverage and a uniquely designed nose area effectively block light.
- 3D Contoured Design: Deeper eye area contour allows free eye movement without pressure.
- Long-Lasting Battery: 240mAh battery provides over 10 hours of playback on a 2-hour charge.
- Timing Function: Set automatic shutdown for 30, 90, or 120 minutes.
- Bluetooth 5.2 Stereo Sound: High-fidelity sound, easy pairing with smartphones and tablets.
- Hands-Free Calling: Built-in adjustable high-quality speaker and microphone for clear calls.
- Washable Design: Bluetooth module and wires are removable for easy cleaning.
Safety Information
Please read and understand all safety information before using this product.
- This product contains memory foam which may cause allergic reactions in some users.
- Keep out of reach of children.
- Do not use if you have difficulty breathing or removing the mask by yourself.
- Always follow the instructions provided with the product.
Setup and Initial Use
Follow these steps to set up your LC-dolida Bluetooth Sleep Mask:
- Charge the Device: Connect the provided charging cable to the mask's charging port. A full charge takes approximately 2 hours.
- Power On: Long press the 'ON/OFF' button (middle button on the control panel) until the red/blue light flashes.
- Bluetooth Pairing: Turn on Bluetooth on your phone or tablet. Find the device named 'BJ21-10' in the list of available devices and connect to it.
- Adjust Fit: Adjust the nose flap to comfortably fit your nose. Adjust the length of the strap to the most comfortable position for your head.

Image: An illustration detailing the control panel buttons for power, volume, track skipping, and white noise/timer functions.
Operating Instructions
Power On/Off:
- To Power On: Long press the middle 'ON/OFF' button.
- To Power Off: Long press the middle 'ON/OFF' button again.
Bluetooth Connectivity:
- Ensure the mask is powered on and in pairing mode (flashing red/blue light).
- On your device, search for and connect to 'BJ21-10'.
- Once connected, you can play music or other audio from your device.
White Noise Function:
The mask has 8 built-in white noise sounds. To activate and cycle through them:
- Triple-click the '-' (minus) button to enter White Noise Mode.
- Short press the '-' or '+' buttons to cycle through the different white noise sounds.

Image: A visual representation of the 8 distinct white noise audio options available on the sleep mask.
Music Playback and Volume:
- Play/Pause: Short press the middle 'ON/OFF' button.
- Volume Up: Short press the '+' button.
- Volume Down: Short press the '-' button.
- Next Track: Long press the '+' button.
- Previous Track: Long press the '-' button.
Timing Function:
Set a timer for automatic shutdown to conserve battery and ensure uninterrupted sleep:
- Triple-click the '+' (plus) button to activate the timer function.
- Available timer settings are 30, 90, and 120 minutes.

Image: The sleep mask worn by a user, highlighting the smart auto-off timer feature with options for 30, 90, and 120 minutes.
Hands-Free Calling:
When connected via Bluetooth, you can answer calls directly through the mask:
- Answer/End Call: Short press the middle 'ON/OFF' button.
- Reject Call: Long press the middle 'ON/OFF' button.
Care and Maintenance
To ensure the longevity and hygiene of your sleep mask:
- Washing: The sleep mask is washable. Before washing, carefully remove the Bluetooth module and internal wires/speakers.
- Handwash Only: Handwash the fabric mask with mild soap and water. Do not machine wash or tumble dry.
- Drying: Allow the mask to air dry completely before reinserting the electronic components.
- Reassembly: Reassemble the sleep mask by carefully placing the speakers and Bluetooth module back into their designated pockets.

Image: A visual guide demonstrating the removal of the internal electronic components for washing.
Troubleshooting
If you encounter any issues with your LC-dolida Bluetooth Sleep Mask, please refer to the following common solutions:
- No Power: Ensure the mask is fully charged. Connect it to a power source for at least 2 hours.
- Bluetooth Not Connecting: Make sure the mask is in pairing mode (flashing red/blue light). Turn off and on your device's Bluetooth, then try reconnecting. Ensure no other devices are currently connected to the mask.
- No Sound: Check the volume levels on both the mask and your connected device. Ensure the speakers are correctly positioned over your ears.
- Light Leakage: Adjust the nose flap and the strap for a snug fit to minimize any light gaps.
- Discomfort: Adjust the strap and speaker positions for optimal comfort. The 3D contoured eye cups are designed to prevent pressure on your eyes.
Specifications
| Feature | Detail |
|---|---|
| Model Number | LC003 |
| Brand | LC-dolida |
| Bluetooth Version | 5.2 |
| Battery Capacity | 240mAh Lithium Ion (included) |
| Charging Time | Approx. 2 hours |
| Playback Time | Over 10 hours |
| Special Features | Play Music, Timing, White Noise, Wireless |
| Material | Memory Foam |
| Color | Cool Black |
| Package Dimensions | 8.9 x 4.49 x 1.42 inches |
| Item Weight | 5.64 ounces |
Warranty and Support
LC-dolida Sleep headphones come with a 12-month replacement warranty to ensure your purchase enjoyment. If you have any questions, concerns, or require support regarding your Bluetooth sleep mask, please contact LC-dolida customer service immediately for assistance.
Product Video
Video: An official product video from ZPJSHENG demonstrating the Bluetooth Wireless White Noise Sleeping Eye Mask, highlighting its features and ease of use.





