
Olive Union Air Expert Review
Our independent lab tested the Olive Union Air using standardized electroacoustic measurements and real-ear simulation. This review presents objective performance data across speech clarity, noise handling, and streaming quality for this budget OTC hearing aid.

Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.

Lab Assessment
Olive Union Air Verdict
The verdict below synthesizes our measured results into an overall assessment of the Olive Union Air. It reflects how this budget OTC device performed across all five tested metrics in our lab evaluation.
The Olive Union Air delivers solid speech clarity in quiet settings and excellent music streaming at a budget-friendly price for casual listeners.
- Excellent feedback handling5.0/5
- Strong music streaming+1.66 vs category
- Solid speech in quiet3.4/5
- Low speech-in-noise performance0.8/5
- Below-average own voice quality2.2/5
Fit Performance
How the Olive Union Air Tested Across Fit Conditions
We measured the Olive Union Air in both Initial and Tuned configurations. The summaries below describe how the device performed under each fit condition during standardized testing.
In our initial fit testing with foam tips and the manufacturer's default fitting formula, the Olive Union Air achieved a normalized score of 3.8/5. Speech in quiet performed well at 3.5/5, while speech in noise was limited at 0.7/5. Feedback handling was excellent at 5.0/5, and music streaming showed solid performance at 3.6/5. Own-voice comfort measured 2.2/5, reflecting mixed results in this area. The device delivered consistent out-of-box performance without requiring professional adjustment.
What is HearAdvisor's Initial Fit?
The Initial Fit approximates the most likely settings and eartips for a typical moderate hearing loss. Results are measured across the same 72 acoustic scenes in our custom-built lab, then scored on a 5-star scale using an auditory model.
Metric Breakdown
Olive Union Air Performance Across Five Lab Metrics
Our lab measures every device on speech in quiet, speech in noise, own-voice comfort, feedback control, and streaming quality. The score card below shows how the Olive Union Air performed on each individual metric.
Amplification Data
Olive Union Air Insertion Gain Measurements
The graph below plots the measured amplification the Olive Union Air provides at each frequency against prescriptive targets. This visualization shows how closely the device matched the gain levels intended for the test hearing-loss profile.
Audio Evidence
Listen to the Olive Union Air Through Our Test Manikin
We captured audio samples through an acoustic manikin fitted with the Olive Union Air. Compare these recordings to the unaided reference below to hear how the device processes speech and environmental sounds.

Test Configuration
Olive Union Air Lab Testing Documentation
The notes below document the specific settings, firmware version, and test conditions used during our Olive Union Air evaluation. This information provides context for interpreting the measured results.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Foam tip | Foam tip |
| Receiver | Integrated in device | Integrated in device |
| Fitting Formula | Proprietary manufacturer default | Proprietary manufacturer default |
| Listening Program | Restaurant | Restaurant |
| Volume Setting | 90% (9/10) | 90% (9/10) |
| Software Version | vm4053d1203 | vm4053d1203 |
| Tuning Adjustments | Hearing Settings at "Default", Directionality at "Front", Noise Setting at "3" (max), Feedback Cancellation at "On", Other settings at manufacturer defaults. | Multi-band equalizer was adjusted, Hearing Settings at "Default", Directionality at "Front", Noise Setting at "3" (max), Feedback Cancellation at "On", Other settings at manufacturer defaults. |





