Your Perfect Solution For Clearer Hearing
Advanced Tech, Affordable Price
Using cutting-edge tech, we created fully invisible devices. With Bluetooth streaming and smart adaptive tech, our prices are much lower than competitors' thousands dollars.
Powerful Bluetooth App
Advanced Bluetooth enables HD audio and natural sound. Works with iOS & Android. Easy-to-use app controls. App name: Retonefit
Upgrade to Premium for self-fitting and personalized features.
Smart AI Algorithm
AI analyzes surroundings to reduce noise and boost speech clarity. Auto-adjusts to environments and menmoy your preferences over time.
CHOOSE YOUR PERFECT Bluetooth HEARING AIDs
Key Bluetooth Features of SmartU
Self-Fitting Audiometry & Personalized setting
- In-app hearing test & customized audiogram adjustment. Personalize your Hearing Aids instantly, no appointments, no guesswork.
Bluetooth Music Streaming & Answering Call
- TWS 5.2 Bluetooth Lossless Audio Technology delivers concert-like fidelity for music and face-to-face clarity for calls.
Fine-tune Settings for Any Environment
- With adjustable treble and bass, noise reduction & feedback cancellation, you can easily take command of audio settings, making voices and other sounds more natural.
- Cross-platform compatibility (iOS/Android), plus connects seamlessly to your TV, tablet, or car stereo wirelessly.
AI-Powered Clarity with Adaptive Listening
Enjoy effortless conversations in noisy restaurants and outdoors. Our AI eliminates whistling and noise for crystal-clear sound.
✓ Smart Noise Reduction
– –AI eliminates background noise while enhancing speech
✓ Feedback-Free Design
– –Deep Neural Network hybrid technology prevents whistling
✓ Automatic Speech Focus
– –Prioritizes human voices intelligently
✓ Wind & Crowd Control
– –Dedicated modes for outdoor and social settings
✓ Call Clarity Boost
– –Natural and clear phone conversations
Packed with Extra Features, Effortless Control (iOS & Andriod)
✓ User-Friendly Smart App
• One-touch presets four programs & swipe volume adjustment.
• User-friendly touch controls with visual interface, packed with delightful features to explore.
✓ Personalized Audio
•Custom tone & noise reduction & feedback cancellation presets.
• Microphone clarity tuning & binaural balance control.
✓ Medical-grade Hearing Health Tools
• Self-administered hearing test.
• Personalized self-fitting algorithm.
• Professional audiogram editor.
CLEAR SOUND,HIGH QUALITY
Our advanced AI DSP chip delivers studio-grade audio with:
✓ Zero Feedback - -Hybrid cancellation technology
✓ Smart Noise Reduction - -Up to 30dB ambient noise suppression
✓ HD Voice Enhancement - -16-bit/48kHz processing
✓ Adaptive Conversation Boost - - Isolates speech frequencies
Digital Noise Suppression Technology
For noise in the living environment, the hearing aid detects and analyzes the frequency spectrum of the input sound, distinguishes the difference between ordinary speech and noise, then suppresses the noise. When the noise signal disappears, suppression stops. Make sure the voice in the conversation is clear and authentic.
Beyond the Basics: Explore Powerful Features

Sleek, Portable & Effortlessly Rechargeable
• Small Pocket-Sized Convenience - Ultra-compact charging case (50% smaller than standard cases),only 45g weight.
• Smile-Inspired Design for Daily Happiness.

Fast Charging & All-Day Power
• Type-C charging port (universal compatibility)
• 3-Hour Full Charge for Charging Case → Provides 60 hours additional backup power
• 2-Hour Full Charge for hearing aids → 18 hrs (hearing mode) / 12 hrs (calls or audio streaming)

Seamless OTA Updates for Continuous Innovation
• Automatic Wireless Updates - New features delivered directly to your devices
• Future-Ready Technology - Always stays compatible with latest standards

Senior-Friendly Design with Large Text
• Adjustable Text Sizing for Easy Reading – Designed Specifically for Seniors
Designed by professional hearing team
Discreet & Comfortable Invisible
• Ultra-Compact Size
- - 50% smaller than standard ITC models.
• Precision Engineered
- - Developed by audiologists using medical-grade 3D scanning technology.
• Ergonomic Comfort
- - Smooth, anatomical contours adapt perfectly to your ear canal.
• Virtually Undetectable
- - 1.1g Weight, Deep placement makes them invisible when worn.
What's in Box?
Specifications
| INDEX | PARAMETER | INDEX | PARAMETER |
|---|---|---|---|
| Model | SmartU | Housing Design | IIC(Invisible-in-canal) |
| Max Output (OSPL90) | 106+3dB | Transmission Distance | 30 meters |
| Full-on Gain Value (HFA FOG@50) | 33±5dB | PEAK OSPL90 | 100±4dB |
| Total harmonic Distortion | ≤3% | Average Gain | 29±4dB |
| Self-generated Noise Value | ≤30dB | Hearing time | 18H |
| Frequency Response Bandwidth | ≤200Hz ≥5000Hz | Audio time | 12H |
| Bluetooth Standard | BT5.2 | 100% Charge earbuds | 2H |
| Color | Beige | 100% Charge case | 4H |
| Channel | 16 | Battery Type | Rechargeable |
| Program | 8 | Volume level | 7 |
| Bluetooth Function1 | Adjust Volume | Bluetooth Function2 | Switch Program |
| Bluetooth Function3 | Personalized Tone | Bluetooth Function4 | Personalized Audio |
| Bluetooth Function5 | Hearing Test (Premium plan) | Bluetooth Function6 | Personalized Self-fitting (Premium plan) |
| Bluetooth Function7 | Editor Audiogram (Premium plan) | Bluetooth Function8 | Audiogram Veiw (Premium plan) |
HAPPY MOMENTS
SEE WHAT THEY SAYS
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