Quick Answer: LINNER sells two current OTC hearing aid models — the Saturn (in-the-canal, about $99.99 on sale) and the Mercury (receiver-in-canal, about $229.99 on sale) — both FDA-registered and FSA/HSA eligible. Independent lab testing from HearAdvisor found a genuine surprise: the cheaper Saturn delivered “reasonably good” speech-in-quiet performance, while the pricier Mercury scored a “C” rating in the bottom 25% of all tested devices for speech clarity. If you’re considering LINNER, the budget model is the better-tested buy, not the upgrade.
LINNER shows up as a passing mention on this site’s retailer guides — our Best Buy hearing aids review lists it among eight OTC brands sold there, and our Target hearing aids guide flags some LINNER listings as personal sound amplifiers rather than true hearing aids — but LINNER has never had its own review here. Here’s what the brand actually sells, what independent testers found, and which model (if either) is worth buying.
LINNER by the numbers
- 2 current models — Saturn and Mercury — are listed on linnerlife.com as of this review; earlier Bluetooth-enabled Nova and Mars models have dropped off the current lineup.
- $99.99–$229.99 is the current sale-price range on LINNER’s own site; regular (non-sale) prices run $199.99–$299.99, roughly double.
- Bottom 25% is where HearAdvisor’s independent lab testing ranked the Mercury for overall speech clarity, despite being LINNER’s pricier, higher-gain model.
- 45 dB vs. 55 dB is the max gain difference between Saturn and Mercury — Mercury is built for more amplification, aimed at mild-to-moderate rather than only mild loss.
- 45-day trial and a one-year limited warranty apply to both models, per LINNER’s own site.
- 1,000+ U.S. retailers, including Best Buy and Walmart, carry LINNER alongside LINNER’s own direct-to-consumer site, per HearingTracker.
LINNER models compared
| Model | Style | Max gain | Battery | Price (pair) | Independent lab rating |
|---|---|---|---|---|---|
| Saturn | CIC (in-the-canal) | 45 dB | 20 hrs (96 hrs w/ case) | ~$99.99–$199.99 | "Reasonably good" speech-in-quiet (HearAdvisor) |
| Mercury | RIC (receiver-in-canal) | 55 dB | 20 hrs (80 hrs w/ case) | ~$229.99–$299.99 | "C" rating, bottom 25% (HearAdvisor) |
| Audien Atom Pro 2 (alt.) | ITE | — | — | ~$189–$289 | ★★★★ (site canon) |
1. LINNER Saturn — The Better-Tested, Cheaper Option
LINNER Saturn
- Completely-in-canal (CIC) housing, no app or phone pairing required — simple push-button controls on the device itself.
- 20-hour battery per charge, up to 96 hours total with the charging case, and a 45-day trial.
- HearAdvisor's independent lab testing rated it the only LINNER model with consistently "reasonably good" speech-in-quiet performance — the strongest result in the brand's current lineup.
Batteries, cleaning brushes, and a backup charging case tend to become “I need this today” purchases once you’re actually wearing hearing aids daily — try Amazon Prime free for 30 days for two-day delivery on that kind of restock.
2. LINNER Mercury — More Power, Weaker Lab Results
LINNER Mercury
- Receiver-in-canal (RIC) housing with higher max gain (55 dB vs. Saturn's 45 dB), aimed at users who need more amplification.
- 20-hour battery per charge, up to 80 hours with the charging case; HearAdvisor noted the deeper charging bays made day-to-day fitting more fiddly than the Saturn's.
- Despite the higher price and higher gain, independent lab testing gave it a "C" rating, placing it in the bottom 25% of all devices HearAdvisor has tested for speech clarity — "average" at best in real-world listening.
The Mercury’s higher gain matters if the Saturn’s 45 dB genuinely isn’t enough for your loss — but if your hearing loss is mild enough that either model would work, the lab data says pick the Saturn and save $130.
Who’s behind LINNER
LINNER is a brand of the acoustic technology company EPHA, co-headquartered in Santa Clara, California, and Shenzhen, China. The company started in 2016 building noise-canceling earbuds, launched its first hearing aid (the Nova, via a crowdfunded Indiegogo campaign) in 2022, and moved fully into FDA-regulated OTC territory after the FDA’s 2022 OTC rule took effect. That’s a shorter U.S. hearing-aid track record than established budget names like MDHearing or Audien, though there’s no sign of the brand-continuity risk affecting Eargo, Lexie, or Go Hearing — LINNER shows no indication of winding down.
The best alternatives to LINNER
- Audien Atom Pro 2 (~$189–$289/pair): stronger independent lab data across its whole lineup, not just one model — see our Audien hearing aids review.
- Ceretone Torch (~$199–$249/pair): more style variety and the best-tested model in its own lineup — see our Ceretone hearing aids review.
- MDHearing VOLT MAX (~$600/pair): costlier, but from a brand with a much longer U.S. support history — see our MDHearing hearing aids review.
For the wider field, see our best cheap hearing aids and best OTC hearing aids roundups.
Before you buy: the OTC ground rules
LINNER markets its lineup as FDA-registered OTC hearing aids for adults with perceived mild-to-moderate hearing loss — a self-assessed category, not a clinical diagnosis. Anyone with severe, sudden, or one-sided hearing loss, ear pain, drainage, or pulsing tinnitus should see a hearing professional rather than starting with any OTC device, LINNER included.
The bottom line
LINNER is a legitimate, FDA-registered budget OTC brand, but its own lab test results argue against following the price tag: the $99.99 Saturn tested better than the $229.99 Mercury. If you’re set on trying LINNER, start with the Saturn — it’s cheaper and the only model HearAdvisor rated consistently good for speech clarity. If independently-verified performance across an entire lineup matters more than the lowest possible entry price, Audien or Ceretone are safer bets. Browse budget hearing aids on Amazon or see our best cheap hearing aids guide for the full field.