HSKLock Hearing Aid vs Linner Nova Earbud
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

HSKLock Hearing Aid
The HSKLock Hearing Aid is a budget-priced amplification product available for $69, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This behind-the-ear device uses disposable batteries and ranks #5 of 8 amplification products tested. In our testing, the HSKLock delivered excellent feedback handling at 5.0/5, scoring 0.72 points above the category average. This means users can expect stable performance without whistling during typical wear. Own-voice comfort scored 2.8/5, slightly above the category average but only mixed in absolute terms. However, speech clarity presents significant limitations. Speech in quiet scored 1.5/5, falling 0.63 points below the category average, while speech in noise measured 1.0/5, which is 0.37 points below average. Music streaming scored 0.0/5, well below the already-low category average of 1.16/5, making this device unsuitable for audio entertainment purposes. The HSKLock may appeal to budget-conscious consumers seeking basic amplification with reliable feedback control. Those prioritizing speech understanding or music quality should consider alternatives. At this price point, competitors like the Autiphon U0 Series offer similar overall performance, though each device has distinct trade-offs in specific metrics.

Linner Nova Earbud
The Linner Nova Earbud is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.4/5 in HearAdvisor lab testing. At $299, it ranks #39 of 65 OTC hearing aids tested, placing it in the top 58% of its category. This device shows a distinctive performance profile with clear strengths and weaknesses. Music streaming is a standout at 4.5/5—an excellent score that sits 2.58 points above the category average. Feedback handling is equally impressive at 5.0/5, meaning users can expect stable performance without whistling during normal wear. These metrics suggest the Linner Nova excels as a streaming-capable earbud-style device. However, speech clarity metrics fall below category averages. Speech in quiet scores 2.1/5, which is 0.71 points below average and reflects mixed absolute performance. Speech in noise is low at 1.3/5, trailing the average by 0.19 points. Own-voice comfort is particularly challenged at 0.5/5—a low score that sits 2.01 points below the category average, meaning users may notice their own voice sounds unnatural or boomy. The Linner Nova Earbud may appeal to buyers who prioritize streaming audio quality and stable feedback-free wear over maximum speech benefit. Those seeking stronger speech clarity should consider alternatives in this price range like the Elehear Beyond (4.34/5) or Apple AirPods Pro 2 (4.04/5), which score higher overall.
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)
Audio scenes
Recorded samples (Tuned)
Fitting configuration for tuned fit