Introduction
Thank you for choosing the Cearvol Wave Lite Sound Amplifier. This device is designed to enhance your hearing experience with advanced AI noise reduction, app control, and versatile connectivity. Please read this manual carefully to understand how to set up, operate, and maintain your device for optimal performance.
What's in the Box
Upon unboxing your Cearvol Wave Lite, ensure all components are present:
- 1x Cearvol Wave Lite Sound Amplifier (pair)
- 1x Charging Case
- 1x Type-C Charging Cable
- 1x AUX Audio Cable (3.5 mm)
- 8 Pairs of Eartips (various sizes)
- 1x Cleaning Brush
- 1x User Manual
- 1x Quick Start Guide

Image: All components included in the Cearvol Wave Lite package.
Video: Unboxing the Cearvol Wave Lite Sound Amplifier, showing all included accessories and the charging case.
Setup and First Use
1. Device Activation
Before first use, the sound amplifiers must be activated.
- Remove the protective film from the charging case.
- Take out the earbuds.
- Remove the insulating adhesive strips from the earbuds.
- Place the earbuds back into the charging case and close the lid.
- Connect the charging cable. After approximately 10 minutes of charging, the devices will be ready for use.
Video: Guide to activating your Cearvol Wave Lite Sound Amplifier for the first time, including removing protective films and initial charging.
2. App Connection
To connect your Wave Lite to the Cearvol app:
- Open the Cearvol app and select "Wave Lite".
- Read the warning notice and quick guide.
- Accept the Terms of Use and Privacy Policy.
- Enter your email address and tap "Get CAPTCHA".
- Check your email for the verification code, enter it into the app, and tap "Connect Hearing Aids" to access the main interface.
For subsequent reconnections, simply ensure Bluetooth is active on your device. Wear your sound amplifiers, and they will connect automatically. The app will be ready for use within seconds.

Image: The Cearvol app interface for personalized sound control.
Video: Demonstrating the first connection of the Wave Lite to the Cearvol app, including login and device selection.
Wearing the Device
Achieving a perfect fit is crucial for optimal sound quality and comfort. The Wave Lite comes with 8 pairs of eartips, including 4 double-flange pairs for a perfect seal (to prevent whistling) and 4 single-layer pairs (S/M/L/XL) for maximum lightness.
- Choose the eartip size that provides the best seal and comfort.
- Hold the eartip by its edge with both hands, flip it outward, then pinch the edge with your index finger and thumb.
- Hold the sound amplifier with one hand and the eartip with the other. Gently attach the eartip until it feels comfortable and secure in your ear canal.

Image: Visual guide for correctly wearing the Wave Lite earbuds, illustrating proper insertion steps.
Key Features
AI/DNN Vocal Focus & Noise Reduction
The Cearvol Wave Lite utilizes AI/DNN (Artificial Intelligence/Deep Neural Network) to analyze voice and environmental noise in real-time. This technology highlights voices and reduces background noise, making it ideal for conversations in challenging environments like restaurants, outdoors, or offices.

Image: Explanation of AI/DNN technology for clear voice and noise reduction.

Image: Internal components for clear voice, including Knowles balanced armature and directional microphones.

Image: Noise reduction in action, filtering distracting background sounds.

Image: Clear and comfortable hearing with powerful noise reduction and whistle elimination.
Customizable with Cearvol App
Use the Cearvol app to conveniently adjust volume, create a personalized hearing profile, and switch between different environmental modes such as "Indoor", "Outdoor", "Conversation", and "Restaurant". This ensures a tailored listening experience.

Image: Customizing sound with the Cearvol app.

Image: Own Voice Control (OVR) eliminates the sensation of "talking in a barrel," allowing for confident and comfortable conversation.

Image: Personalized smart hearing via the Cearvol app, creating a custom hearing profile in 10 minutes.

Image: Four preset scene modes for every situation: Indoor, Outdoor, Restaurant, Conversation.

Image: Precise side adjustment, regulating each ear separately for perfect and balanced comfort.

Image: OTA updates, receiving the latest software updates directly from your phone.
AUX-IN for TV Listening
Connect the Wave Lite directly to your TV or laptop using the included AUX cable. This mode provides more stable and direct audio transmission, facilitating clear listening to TV dialogues.

Image: AUX-IN ready for TV and more, enjoying clear and private sound.

Image: AUX-IN for lag-free audio, direct connection to TV, in-flight entertainment, and more.
40dB Vocal Enhancement
The Wave Lite offers powerful 40dB vocal enhancement, making it ideal for individuals with mild to moderately severe hearing loss.

Image: Powerful 40dB amplification, ideal for mild to moderately severe hearing loss.
Bluetooth Dual Connection
The sound amplifier allows simultaneous connection to smartphones and computers. Easily switch between calls, music, and video calls without needing to reconnect.

Image: Bluetooth streaming for stable, low-latency audio for music and calls, with dual device connection.

Image: Dual device connection, connecting simultaneously to phone and computer, easily switching between calls and music.
Comfort and Whistle-Free Experience
Focus on life, not on noise. Our AFC (Automatic Feedback Cancellation) technology reduces whistling, ensuring a comfortable listening experience throughout the day.

Image: Whistle-free comfort, focusing on life with AFC technology reducing feedback.
Rechargeable with Long Battery Life
Designed for daily use, the Wave Lite offers up to 22 hours of use with the charging case (depending on usage). Fast charging is also ideal for on-the-go use.

Image: Fast charging provides 3 hours of use from a 15-minute charge, with a total of 22 hours with the charging case.
IPX5 Water Resistance
The Wave Lite is IPX5 rated for water resistance, protecting your sound amplifiers from sweat and splashes.

Image: IPX5 Water Resistant, protecting against sweat and splashes.
Usage Scenarios & Hearing Suitability
The Cearvol Wave Lite is ideal for mild to moderately severe hearing deficiencies. Consult the table below to determine if this system is suitable for you.

Image: Chart indicating suitability for different hearing loss levels based on decibel thresholds.
Adaptation Period
It is normal to need time to get used to the new sound; hearing requires a short adaptation period. We recommend a progressive adjustment guide:
- Week 1: Wear at home for 1-2 hours a day. Some discomfort is normal.
- Week 2: Wear outdoors for 3-4 hours a day. Expect to hear faint sounds.
- Week 3: Wear all day. Comfortable in various environments.
- Week 4: Sound amplifiers integrate naturally into daily life.

Image: Four-week adaptation guide for integrating the sound amplifiers into daily life.
Specifications
| Brand | Cearvol |
| Model Name | Wave Lite |
| Color | Galassia (Galaxy) |
| Material | Plastic |
| Style | In-Ear |
| Power Source | Rechargeable Battery Powered |
| Special Features | Volume Control, Sweat Resistant, Rechargeable |
| Noise Control | Adaptive Noise Cancellation |
| Audio Sensitivity | 40 Decibels |
| Compatible Devices | TV, Tablet, Smartphone |
| Control Type | Application Control |
| Battery Type | 1 Lithium Ion battery required (included) |
| UPC | 762483245087 |
Maintenance and Care
To ensure the longevity and optimal performance of your Cearvol Wave Lite:
- Regularly clean the earbuds and charging case using the provided cleaning brush.
- Avoid exposing the device to extreme temperatures or direct sunlight.
- Store the device in its charging case when not in use to protect it and keep it charged.
- Do not use abrasive cleaners or immerse the device in water, despite its IPX5 rating for splashes and sweat.
Troubleshooting
If you encounter any issues with your Cearvol Wave Lite, please refer to the following common solutions:
- No Sound: Ensure the earbuds are charged, properly seated in your ears, and connected to your device via Bluetooth or AUX-IN. Check volume settings on both the app and your connected device.
- Whistling/Feedback: Ensure the eartips provide a snug seal in your ear canal. Try different eartip sizes for a better fit.
- Connection Issues: Make sure Bluetooth is enabled on your smartphone/computer. Restart the Cearvol app and try reconnecting. If issues persist, try forgetting the device in your Bluetooth settings and pairing again.
- Charging Problems: Verify that the charging cable is securely connected to both the case and a power source. Check for any debris in the charging port.
For further assistance, please contact customer support.
Warranty and Support
Cearvol offers a 3-year warranty on the Wave Lite Sound Amplifier. Our team is always available to assist with any questions or concerns you may have.
Contact Information:
- Email (All languages): support@cearvol.com
- Call Center (English only): (959) 206-0088
- Service Hours: Mon-Fri, 9:00-18:00 (PST)
If you require assistance, please do not hesitate to contact us.





