How to Use CHOSGO SmartU Bluetooth Hearing Aids for At-Home Hearing Testing and Self-Fitting

CHOSGO has announced the launch of the SmartU Bluetooth OTC Hearing Aids, a next-generation over-the-counter hearing solution designed specifically for seniors with mild to moderate hearing loss. SmartU combines hearing support with modern Bluetooth connectivity, Bluetooth music and call streaming, adaptive technology, remote assistance features, ultra-long battery life, and an ultra-compact design suitable for small ear canals and older adults.

“Bluetooth hearing aids are transforming the hearing industry by making hearing care more convenient and personalized,” said a CHOSGO Hearing Aids spokesperson. “SmartU is designed to help users enjoy clearer conversations, easier daily communication, and more convenient hearing management directly from their smartphones.”

Self-Fitting Through the Retonefit App

The SmartU Bluetooth hearing aids support self-fitting through the Retonefit mobile app, allowing users to personalize hearing settings from the comfort of their home.

Pure-Tone Hearing Test

The app includes a pure-tone hearing test that evaluates hearing sensitivity across multiple frequencies and sound levels.

Users complete the test in a quiet environment by responding to tones played through the hearing aids. Based on the responses, the system generates a personalized audiogram and automatically adjusts hearing parameters.

hearing test

Speech Audiometry Support

The app also supports speech-based hearing assessment functions designed to help evaluate speech clarity in noisy environments.

Binaural Volume Balance Test

After completing the hearing assessment, users can perform a binaural balance adjustment test to optimize volume balance between both ears.

If one ear sounds louder than the other, users can independently adjust the left and right ear volume for a more natural listening experience.

Personalized Hearing Compensation

Using the hearing test results, the Retonefit app automatically calculates personalized hearing compensation parameters, including:

  • Gain adjustment
  • Compression ratio
  • Frequency response optimization
  • Multi-channel sound compensation

The personalized hearing profile can then be directly applied to the hearing aids for customized amplification.

Users who already have a professional audiogram from a hearing clinic may also manually enter their audiogram information into the app for more advanced personalization.

Multiple Listening Modes and Manual Fine-Tuning

The SmartU hearing aids support multiple listening programs designed for different environments.

Manual Modes Include:

  • Quiet Environment
  • Music Environment
  • Echo Environment
  • Outdoor Noise Speech

Automatic Environmental Recognition Modes Include:

  • Pure Noise Environment
  • Noisy Speech Environment
  • Pure Quiet Environment
  • Outdoor Quiet Speech

Users can also manually adjust:

  • Volume
  • Tone
  • Noise reduction
  • Feedback suppression
  • Audio clarity
  • Microphone clarity settings

for a more comfortable and personalized listening experience.

Remote Fitting Assistance

The Retonefit platform also supports remote fitting appointments and assistance.

Users who need additional help can remotely connect with hearing care professionals for fitting guidance, sound optimization, and troubleshooting support.

The remote fitting function may be especially beneficial for:

  • Seniors
  • Individuals with limited mobility
  • Users living far from hearing clinics