Our independent lab tested the iBstone AuraLink using clinical measurement equipment and standardized protocols. This review presents objective performance data across five key hearing aid metrics to help you evaluate this mid-priced OTC option.
Dr. Steve Taddei, Au.D. — Lab Director & Reviewer
Dr. Abram Bailey, Au.D. — Fact Checker / Editor
The iBstone AuraLink is a mid-priced OTC hearing aid best suited for music lovers who prioritize streaming quality and feedback-free listening over speech clarity.
Top 49% of OTC Hearing AidThe score card below displays the AuraLink's performance across speech in quiet, speech in noise, own-voice comfort, feedback control, and music streaming. Each metric reflects standardized measurements conducted in our acoustic test chamber. The purple SoundScore graph is the overall result, and the five graphs after it break it into individual measurements for the selected fit. Each curve shows how scores are spread across all tested hearing aids, and the dot and number mark the score for iBstone AuraLink.
Every hearing aid is lab-tested in two states — as it sounds out of the box, and after professional tuning. Switch fits to update the five metric graphs below.
How clearly speech comes through in calm, one-on-one surroundings.
Speech understanding against loud background noise — the toughest everyday test.
How natural your own voice sounds while wearing the aids, without a boomy, plugged-up quality.
Sound quality of music streamed to the hearing aids over Bluetooth.
Resistance to the whistling and squealing caused by acoustic feedback.
Overall Assessment
Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.
Amplification Data
The graph below plots the AuraLink's measured insertion gain against prescriptive targets across the frequency range. This visualization reveals how closely the device's amplification matches what audiological guidelines recommend for the test hearing loss.
Audio Samples
These recordings capture what the AuraLink sounds like using a head-and-torso simulator in our lab. Compare the aided samples to our unaided reference to hear the device's effect on speech and environmental sounds.
How this hearing aid sounds in our lab scenes. Compare it out of the box and after professional tuning.
Scene type: Conversation
74 lab recordings of this product. They demonstrate relative processing in our lab and cannot predict an individual fitting outcome.
Test Configuration
The documentation below records the specific settings, app configurations, and fitting parameters used during our AuraLink evaluation. This transparency allows you to understand exactly how we conducted each measurement.
The initial fit uses a tulip dome with the manufacturer's proprietary default settings, achieving a normalized score of 3.6/5. Out of the box, the AuraLink delivers excellent feedback control at 5.0/5 and solid music streaming at 3.6/5. Speech performance is more limited, with speech in quiet at a mixed 2.3/5 and speech in noise at a low 1.0/5, both falling below category averages. Own-voice comfort measured 2.7/5, slightly above the category average but mixed overall.
The tuned fit retained the same tulip dome configuration, and performance metrics remained unchanged from the initial fit, resulting in an identical normalized score of 3.6/5. This suggests the device offers limited adjustment range through professional tuning. All metrics—speech in quiet (2.3/5), speech in noise (1.0/5), feedback handling (5.0/5), own voice (2.7/5), and music streaming (3.6/5)—matched initial fit results exactly.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Tulip Dome | Tulip Dome |
| Receiver | Default | Default |
| Fitting Formula | Proprietary manufacturer default | Proprietary manufacturer default |
| Listening Program | Outdoor (Noisy) | Outdoor (Noisy) |
| Volume Setting | Left 15%: Right 25% | Left 15%; Right 25% |
| Software Version | 1.0.5 | 1.0.5 |
| Tuning Adjustments | N3 audiogram input, Other settings at manufacturer defaults | n/a |
| Notes | Different volume settings was needed to balance amplification between devices | Initial and Tuned fits identical as subsequent setting changes maintained or degraded performance |
