The Most Compact And Powerful OTC Hearing Aid

Core One Pro (in-ear-canal)

$379.99
$379.99
$699.99
60-Day Risk-Free Trial
100% Money-Back Guarantee
Free Shipping & Return
Lifetime Support
Exclusive Launch Offer

$40 Off Coupon

$0 $40.00
$40 Off Coupon

6-Month Warranty Extension

$0 $199.00
6-Month Warranty Extension

AC/DC Adapter

$0 $15.00
AC/DC Adapter
🔻 Auto $40 Off – Grab Yours Today!
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Never Miss a Word Again

Core One Pro VS Core One: Still Tiny, Even More Mighty
Starting with the world's smallest hearing aid, Core One, we spent 783 days developing and refining it with feedback from over 10,000 users.
↑794% Power Output
Hear voices with significantly stronger clarity.
98% Design Satisfaction
Experience exceptional comfort with minimal visibility.
↑64% Better Voice Focus
Pick up speech effectively from background noise.
+2 Adaptive Programs
Featuring Wind Noise Reduction & Tinnitus Masking.
8x Feedback Cancellation
Nearly zero squeal, even at maximum volume.
Discreet And Comfortable
Engineered to sit deep within your ear canal, Core One Pro is virtually undetectable to others. Focus on conversations, not on your hearing aid.
Shaped to match your ear's oval contours and 30° canal curve, Core One Pro sits perfectly in place. The ergonomic design eliminates pressure points, delivering all-day comfort.
Weighing just 0.035 oz (1 gram) with a secure fit, Core One Pro feels like wearing nothing at all.
Hear $2,000 sound for less than $400
Intricon® A16 Chip
Powered by a US micromedical pioneer since 1977. Prescription-grade sound, now available over-the-counter.
Knowles® Hi-Fi Speaker
Renowned for precision and detail, these speakers deliver speech with lifelike clarity—bringing you fully back into every conversation.

Stay Powered Without Breaks

20 Hours
Per Single Charge
80 Hours
With Rechargeable Case

Handle Life, Rain or Shine

IP66
Rain, sweat, and dust won’t stop it ever.
everyday ease
Everything on the display screen - volume, programs, all visible. No app, no hassle.
Switch Programs As You Move
Standard
Restaurant
Outdoor
Tinnitus Masking

What You Get

  • 1 Pair FDA-Registered Hearing Aids with Small Ear Tips (Pre-installed)
  • Portable Charging Case
  • 3 Pairs of Ear Tips (L, M, XS)
  • USB-C Charging Cable
  • Cleaning Tool
  • User Manual
  • User Experience
  • Quick-Start Guide
  • 18-Month Warranty (12mo Standard+ 6mo Free Limited Launch Offer)
  • AC/DC Adapter (Free Limited Launch Offer)

Try Risk-Free. Hear Better

Hear Better in 5 Minutes

No appointments or setups. Ceretone aids work right away for clearer talks.

Free & Fast to Your Door

Fast and free delivery from the US warehouse. Ships next day.

Lifetime Expert Support

You’re never alone. Experts help you all the way, with a special 18-month warranty.

60-Day Money-Back Guarantee

Not happy in 60 days? Return it for a full refund — we’ll pay return shipping.

Customer Reviews

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Got Questions? We’ve Got Answers!

Even better — Core One Pro was refined using data from over 1,000 ear canal scans to ensure an even more secure and comfortable fit. And we offer a 60-day risk-free trial, even without return fees.

Yes, it’s designed to be featherlight and ultra-comfortable for extended use, with improved sweat and dust resistance.

No worries — we offer a 60-day risk-free return policy. Try it in your daily life, and if you're not satisfied, simply return it.

Yes, Core One Pro comes with an 18-month limited warranty, including 12 months of standard coverage plus an additional 6 months free during the launch period. This extended warranty provides peace of mind while you enjoy your hearing aids.

Our hearing support team is available Monday through Friday, from 9:00 AM to 6:00 PM (PST), via email at support@ceretone.com or by phone at (866) 283-4262.

The tinnitus masking feature generates calming background sounds (like white noise or ocean waves) to cover ringing/buzzing in your ears.

To activate it:

  • Double-tap your hearing aid twice quickly to cycle through programs until masking starts.
  • Or long-press (3 seconds) the charging case button while the device is inside.

Core One Pro offers stronger sound output, 160% better noise reduction, and two additional sound modes — including wind noise management and tinnitus masking — all while staying just as discreet.