Elehear Beyond Pro vs Linner Mercury
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Elehear Beyond Pro
The Elehear Beyond Pro is a mid-priced OTC hearing aid that earns an A grade with a SoundScore of 4.2/5 in our lab testing, placing it #11 out of 65 OTC devices tested. At $631, this behind-the-ear rechargeable device delivers strong overall performance and has earned HearAdvisor's Expert's Choice Award for both 2024 and 2025. In our testing, the Beyond Pro excels in music streaming, scoring 3.8/5—a solid result that sits 1.88 points above the OTC category average of 1.92/5. Speech clarity in quiet environments also performs well at 3.3/5, which is 0.46 points above average. Speech in noise scores 2.5/5, which is above the category average by 1.00 points, though this remains a mixed result in absolute terms. Feedback handling is excellent at a perfect 5.0/5. The primary limitation is own-voice comfort, which scores 1.2/5—a low result that falls 1.31 points below the category average. Users sensitive to hearing their own voice may find this more noticeable. The device uses closed domes with a medium-power receiver and achieved identical scores in both initial and tuned fit conditions in our testing. The Beyond Pro supports both iPhone and Android streaming with hands-free functionality. It's best suited for users who prioritize streaming audio quality and speech clarity and are less sensitive to own-voice occlusion effects. Within its price range, it competes with devices like the Sony CRE-E10 and Lexie B2 Plus, though some competitors in this tier score higher overall.

Linner Mercury
The Linner Mercury is a budget OTC hearing aid priced at $387, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This visible-in-ear style device ranks #60 of 65 in the OTC Hearing Aid category, positioning it in the lower tier of available options. In our standardized testing, the Mercury demonstrates excellent feedback handling at 4.7/5, scoring 0.16 points above the category average. This means users are unlikely to experience whistling or squealing during typical wear. However, the device shows limitations in other key areas. Speech in quiet scores 2.2/5, falling 0.62 points below the category average, while speech in noise performance is low at 1.0/5, sitting 0.48 points below average. Own-voice comfort is also low at 1.6/5, measuring 0.91 points below the category average. The most significant limitation is music streaming, which scores 0.0/5—a full 1.92 points below the category average. Users who plan to stream phone calls or music through their hearing aids should consider alternatives. At this price point, competitors like the Elehear Beyond and Apple AirPods Pro 2 offer substantially higher overall scores. The Linner Mercury may suit budget-conscious first-time users who prioritize stable, feedback-free wear over streaming capabilities or challenging listening environments. However, those seeking better speech clarity or music quality should explore other options in this price range.
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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Scale 1-5 (Tuned)
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit