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 in the top 15% of the OTC category. Priced at $631, this behind-the-ear device has received HearAdvisor's Expert's Choice Award in both 2024 and 2025. In our testing, the Beyond Pro demonstrates notable strengths in music streaming, scoring 3.8/5—a solid result that sits 1.88 points above the category average. This makes it one of the stronger options for users who prioritize audio entertainment alongside speech clarity. Speech performance is also above average, with speech in quiet scoring 3.3/5 (+0.46 vs category) and speech in noise at 2.5/5 (+1.00 vs category). While the speech-in-noise score is above the category average, it remains mixed in absolute terms at 2.5/5. Feedback handling is excellent at 5.0/5. The primary trade-off is own-voice comfort, which scores 1.2/5—a low result that falls 1.31 points below the category average. Users who are sensitive to how their own voice sounds may find this noticeable. The Beyond Pro is best suited for OTC shoppers who want strong streaming quality and solid speech performance without professional fitting. It competes in a price range that includes higher-scoring options like the Yeasound RIC800 and Sony CRE-E10, so prospective buyers may want to compare based on their priorities. Features include rechargeable batteries, iPhone and Android streaming, and hands-free capability.

Linner Mercury
The Linner Mercury is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. Priced at $387, it ranks #60 of 65 devices in the OTC Hearing Aid category, placing it in the top 91% of the category. In our testing, the Mercury shows a mixed performance profile. Its standout strength is excellent feedback handling at 4.7/5, which is 0.16 points above the category average—meaning users are unlikely to experience whistling or squealing during normal use. However, speech clarity metrics fall below category norms: speech in quiet scores 2.2/5 (0.62 points below average), and speech in noise scores a low 1.0/5 (0.48 points below average). Own-voice comfort also scores low at 1.6/5, sitting 0.91 points below the category average. Music streaming is a notable weakness, scoring 0.0/5—a full 1.92 points below the category average. Users who prioritize streaming audio from their phone should consider alternatives. The device uses a rechargeable battery and features a visible in-ear design with power dome coupling. At this price point, several competitors offer stronger overall performance. The Linner Mercury may appeal to budget-conscious consumers who prioritize feedback-free operation over speech clarity and streaming quality, but those seeking better speech understanding in challenging environments should explore higher-scoring options in this price range.
We independently review each item we recommend and appreciate your trust and support. When you buy through our links, we may earn a commission. Learn More.
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