Jabra Enhance Plus vs Linner Mars
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Jabra Enhance Plus
The Jabra Enhance Plus is a mid-priced OTC hearing aid priced at $799, earning a B grade with a SoundScore of 3.7/5 in our lab testing. This visible-in-ear device ranks #28 of 65 OTC hearing aids tested, placing it in the top 42% of its category. In our testing, the Enhance Plus demonstrated notable strengths in speech clarity and audio streaming. Speech in quiet scored a strong 4.2/5, measuring 1.36 points above the category average. Music streaming performance was equally impressive at 3.8/5, a full 1.88 points above average—making this a solid choice for users who prioritize phone audio streaming. Feedback handling was excellent at 4.7/5. However, the device has a significant weakness: own-voice comfort scored just 0.3/5, falling 2.21 points below the category average. This suggests pronounced occlusion effects that may make the user's own voice sound boomy or unnatural. Speech in noise performance was mixed at 2.1/5—above the category average by 0.62 points, but still limited in absolute terms for challenging listening environments. The Enhance Plus showed meaningful improvement with tuning, jumping from a normalized Initial Score of 3.6/5 to a Tuned Score of 4.2/5. Buyers should note that several competitors in the same price range score higher, including the Sony CRE-E10 at 4.66/5. This device is best suited for users who prioritize music streaming and speech clarity in quieter settings, and who can tolerate own-voice occlusion.

Linner Mars
The Linner Mars is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. At $399, it falls in the lowest price tier for OTC devices, though its overall sound performance ranks #55 of 65 in the OTC Hearing Aid category. This device presents a stark contrast in performance across different listening situations. Music streaming is a genuine standout, scoring an excellent 4.6/5—well above the category average. Feedback handling also earns a perfect 5.0/5, meaning users shouldn't experience whistling or squealing issues. However, the Mars struggles significantly with its core hearing aid function: speech clarity. Speech in quiet scores just 1.9/5, and speech in noise drops to 1.0/5, both falling below category averages. Own-voice comfort is another weak point at 1.0/5, which is 1.51 points below the category average. Users may find their own voice sounds unnatural or boomy when wearing these devices. The tuned fit shows modest improvement over the initial fit (3.4/5 vs 3.1/5), primarily through better speech-in-quiet performance. The Linner Mars may appeal to budget-conscious consumers who prioritize music and media streaming over speech understanding. However, several competitors in the same price range—including the Elehear Beyond and Apple AirPods Pro 2—offer substantially better overall sound performance. Those seeking improved speech clarity should consider alternatives that score higher in that critical area.
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