4-level hearing programs
3 preset hearing modes plus 1 fully customizable mode for your personal fit.



















Crafted with NeuroFlow AI 2.0 sound processing technology, the Cearvol engine delivers superior clarity and consistent performance across everyday environments.
Adaptive noise reduction
Up to 20dB noise reduction. Distinguishes speech from background noise, delivering crystal-clear conversations.
Enhanced feedback control
Upgraded AFC technology reduces feedback noise for a more comfortable listening experience.
AI speech enhancement
24% clearer speech. Intelligently enhances speech while minimizing background interference.
Effortless case controls, ultimate convenience.
All adjustments are made directly on the charging case for a simple, comfortable experience.
Decrease the right
ear volume
Increase the right
ear volume
Choose your preferred gain level for clear, comfortable hearing. Long press 3s to lock/unlock for anti-accident touch.
Increase the left
ear volume
Decrease the left
ear volume
Switch between different listening
environments (e.g., Restaurant
mode)
3 preset hearing modes plus 1 fully customizable mode for your personal fit.
The integrated UV light in the charging case effectively
eliminates 99.9% of bacteria, helping protect your ears
and maintain device hygiene.
Built-in masking sounds help reduce the perception of tinnitus, bringing more comfort to your daily life.
Test your hearing and fine-tune your settings directly in the app for a personalized listening experience.
At Cearvol, we go beyond just selling hearing aids — we deliver long-term care and peace of mind:
45-Day
risk-free trial
Use it in your daily life. If it’s not for you, enjoy an easy return within 45 days.
1-on-1 expert
support
Personalized help from hearing professionals — whenever you need it.
5*24h customer
service
We're here for you throughout the week, nearly round the clock.
Free OTA software
upgrades
Get the latest features and optimizations — wirelessly, anytime.
Got questions? We've got answers. Explore everything you want to know about Cearvol devices.
Nano 2 is designed for adults with mild to moderately severe hearing loss. It suits users who prefer discreet in-canal hearing aids and want personalized settings through an in-app hearing check, My Fit, and separate adjustments for each ear.
You get to try our hearing aids risk-free for 45 days. In the unlikely event that you are not completely satisfied with your hearing aids and wish to return them, you can return them for afull refund. Contact support@cearvol.com for more details.
Use the in-app hearing check to create My Fit for each ear. You can then adjust left and right frequency settings independently and save My Fit for daily use without keeping the app connected.
No. The app is mainly used for initial setup and occasional adjustments.
Since the hearing aids are very small and battery capacity is limited, we optimized power consumption in the design: after 5 minutes of inactivity in the app, the hearing aids will temporarily turn off the connection with the app to reduce unnecessary battery drain and save power for the core hearing function.
This design is based on feedback from 3,000 users with hearing loss. About 80% of them said they don't need to make frequent adjustments after the initial setup. Whenever you need to adjust settings again, simply reopen the app and reconnect.
No. Nano 2 does not stream music, phone calls, or direct TV audio. Bluetooth is only for connection. TV Mode only optimizes speech from a nearby television; it does not connect directly to the TV.