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Product Comparison

Linner Mars vs RCA In-Ear

Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Uses Official HearAdvisor Lab Data
Linner Mars Hero
LinnerSoundGrade B

Linner Mars

The Linner Mars is a budget-priced OTC hearing aid released in 2023, earning a B grade with a SoundScore of 3.2/5 in our lab testing. At $399, it falls in the lower price tier of the OTC category but ranks #55 of 65 OTC devices tested, placing it in the bottom 17% of its category. This visible-in-ear device presents a mixed performance profile with notable strengths and significant weaknesses. Music streaming is a standout feature, scoring an excellent 4.6/5—a full 2.68 points above the category average. Feedback handling is also excellent at 5.0/5, meaning users can expect stable performance without whistling during normal use. However, speech clarity presents challenges. Speech in quiet scores a low 1.9/5, falling 0.85 points below the category average. Speech in noise performance is particularly limited at 1.0/5, sitting 0.46 points below average. Own-voice comfort also scores low at 1.0/5, which is 1.51 points below the category average—users may notice their own voice sounding unnatural or boomy. The Linner Mars may suit budget-conscious consumers who prioritize music and media streaming over speech understanding in challenging environments. However, buyers seeking better speech performance should consider alternatives like the Elehear Beyond or Apple AirPods Pro 2, which offer stronger overall sound scores in the same price range.

RCA In-Ear Hero
RCASoundGrade C

RCA In-Ear

The RCA In-Ear is a budget OTC hearing aid priced at $249, earning a C grade with a SoundScore of 2.8/5 in our lab testing. This places it near the bottom of the OTC category at #64 of 65 devices tested. Speech performance is a significant weakness for this device. Speech in quiet scores just 1.0/5, falling 1.79 points below the category average, while speech in noise also scores 1.0/5, sitting 0.48 points below average. These low absolute scores indicate limited benefit for understanding conversation in most listening situations. Music streaming scored 0.0/5, measuring 1.92 points below the category average—this device is not suitable for audio entertainment. The RCA In-Ear does show strength in feedback handling, scoring an excellent 5.0/5, which is 0.46 points above the category average. Own-voice comfort is mixed at 2.6/5, essentially matching the category average with only a 0.09-point advantage. The rechargeable battery design offers convenience for daily use. At this price point, consumers have substantially higher-performing alternatives. Devices like the Elehear Beyond (4.36/5), Apple AirPods Pro 2 (4.06/5), and several others in the same budget range deliver meaningfully better speech clarity and overall sound quality. The RCA In-Ear may appeal to those prioritizing feedback-free operation above all else, but most users seeking improved hearing will find better value elsewhere in the OTC market.

Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Linner Mars1.9
RCA In-Ear1.0
Speech in noiseNew
Linner Mars1.0
RCA In-Ear1.0
Own voice
Linner Mars1.0
RCA In-Ear2.6
Feedback handling
Linner Mars5.0
RCA In-Ear5.0
Music streaming
Linner Mars4.6
RCA In-Ear0.0
Overall fit score
Linner Mars3.4
RCA In-Ear2.8

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Linner MarsRCA In-Ear
Ear CouplingClosed Dome
Ear CouplingClosed Vented Dome