Invisible Hearing Aids: IIC and CIC Models and What Their Makers Claim

No source we read measures how visible a hearing aid is, so we don't rank them. Makers write two checkable things: the style and a hearing loss range, from mild to moderate for Signia's Silk Charge&Go IX to mild-to-severe for Phonak's Virto I-Titanium. Their claims run from nearly invisible to Phonak's 100% for Lyric.

Figure 1

Canal and invisible-labelled hearing aids, in their makers' words

Each line is quoted or paraphrased from the maker's own page, with the date it was read.

Canal and invisible-labelled hearing aids, in their makers' words
Oticon Own IIC, CIC and ITC Invisible-in-the-Canal (IIC), Completely-in-the-Canal (CIC), In-the-Canal (ITC) No range written on the family page we read Not written on the family page we read https://www.oticon.com/solutions/own-in-the-ear-hearing-aids November 3, 2026
Phonak Lyric Placed deep inside the ear canal; Phonak calls it 100% invisible No range written on the page we read Worn around the clock for months at a time, per Phonak https://www.phonak.com/en-us/hearing-devices/hearing-aids/lyric November 3, 2026
Phonak Virto I-10 NW O Custom in-the-ear, nearly invisible Mild-to-severe ZnAir battery, size 10 https://www.phonak.com/en-us/hearing-devices/hearing-aids/virto-infinio November 3, 2026
Phonak Virto I-Titanium Custom, medical grade titanium, nearly invisible Mild-to-severe Not written in the entry https://www.phonak.com/en-us/hearing-devices/hearing-aids/virto-infinio November 3, 2026
Signia Insio Charge&Go IX CIC Custom completely-in-canal Mild to severe Rechargeable https://www.signia.net/en-us/hearing-aids/types/ November 3, 2026
Signia Insio IX CIC Custom completely-in-canal, one microphone Mild to severe Not written in the entry https://www.signia.net/en-us/hearing-aids/types/ November 3, 2026
Signia Insio IX IIC Custom invisible-in-canal, described as tiny Mild to moderately-severe Not written in the entry https://www.signia.net/en-us/hearing-aids/types/ November 3, 2026
Signia Silk Charge&Go IX Instant-fit CIC-style Mild to moderate Rechargeable https://www.signia.net/en-us/hearing-aids/types/ November 3, 2026
Source:

Figure 2

What the VA bought, by style group

Counts of hearing aids bought, not people and not a share of US sales.

What the VA bought, by style group
Custom hearing aids (CHA), every custom in-ear style together 184715 19.00
Receiver in canal (RIC), advanced receivers category included 772207 79.43
Behind the ear (BTE) 15290 1.57
Source:
How to read these numbers (3)
  • Canal rows are alphabetical by maker, then model, and include a model only when its maker's own US page names a canal style or calls it invisible. They are not a ranking and no model was tested.
  • Pages read for this version: Oticon, Phonak and Signia. Other makers' pages were not read for this version. Each cell is the maker's wording or a short paraphrase of it, read on the date shown; an empty cell means the page read does not say. A maker may ask for its row to be removed.
  • VA rows add every category worksheet of the custom, behind-the-ear and receiver-in-canal groups (972,212 units), multiple-processor and advanced-receiver categories included; the custom group does not separate IIC or CIC from larger in-ear styles.

How this page compares invisible hearing aids

Invisible is a selling word, not a style in federal descriptions; our page on types of hearing aids sets out how FDA, NIDCD and CMS name the in-ear styles. The first results for this search are a consumer guide that ranks the OTC models it tried, one maker's page for its own device, hearing aid sellers' picks and a hearing clinic chain's style page. We publish no picks.

A model enters the table here when its maker's own US page names a canal style, invisible-in-canal (IIC) or completely-in-canal (CIC), or calls the device invisible. For each one we copy what the maker writes: the style, the hearing loss range, and how the aid is powered or worn. Rows run alphabetically by maker. Pages read for this version: Oticon, Phonak and Signia; other makers' pages were not read for this version. Nobody at HearWorth tried these aids on, measured them or compared their sound, and a blank cell means the page we read doesn't say.

IIC and CIC models, and the range each maker writes

Signia's catalog puts a range above every entry. Its Insio IX IIC, "a tiny custom device for those who value discretion above all", sits under mild to moderately-severe hearing loss. Its two custom CIC models, the Insio IX CIC and the rechargeable Insio Charge&Go IX CIC, sit under mild to severe, and the Silk Charge&Go IX, which Signia calls an "instant-fit CIC-style hearing aid", under mild to moderate.

Phonak's Virto Infinio page lists two small custom models, each marked mild-to-severe and nearly invisible: the Virto I-Titanium, in medical grade titanium, and the Virto I-10 NW O, which runs on a size 10 zinc-air battery. Oticon's Own family page lists Invisible-in-the-Canal (IIC), Completely-in-the-Canal (CIC) and In-the-Canal (ITC) models but, on the page we read, no range for them.

None of the canal models in the table carries a profound range in its maker's words. The models that do are listed on our page on hearing aids for severe hearing loss, linked at the end of this page.

Invisibility claims, in the makers' own words

The makers don't agree on what invisible means, and their wording shows it. Oticon says its IIC style "is truly invisible in 9 out of 10 ears" and footnotes the claim on its page. Phonak goes further for Lyric: "Because it is placed deep inside the ear canal, Lyric is the first and only 100% invisible hearing aid." Phonak adds that Lyric can be worn "around the clock for months at a time without taking it out". For its Virto custom models the same maker writes nearly invisible, and Signia speaks of discretion rather than invisibility.

These are claims made by the sellers of the devices. We haven't checked them, and no federal source we read grades visibility; Oticon's own figure says the result changes from one ear to the next. A claim of 100% and a claim of nine ears in ten aren't measured the same way, so the table prints each one as written instead of turning them into a score.

What the VA bought: the custom group, where canal aids sit

The only purchase count by style we hold comes from one federal buyer. The VA's hearing aid procurement report for October 2025 to September 2026 has a worksheet for each category of its custom (CHA), behind-the-ear (BTE) and receiver-in-canal (RIC) groups; added together they hold 972,212 units. The custom group, the one a made-to-order canal aid would be bought under, accounts for 184,715 units, or 19.00%. Receiver-in-canal aids account for 772,207, or 79.43%, a count that includes 1,880 bought under the separate advanced receivers category, and behind-the-ear aids for 15,290, or 1.57%.

The custom figure is not a count of invisible aids. The group holds every custom in-ear style together, and the report gives no separate line for IIC or CIC. The units are aids bought for veterans, not people and not a share of U.S. sales. The VA benefit itself is on VA hearing aids.

What one hospital lists for named IIC models

No maker page we read prints a price for an IIC model, but one hospital's price file names them. Federal rules (45 CFR 180) make each hospital post its standard charges, including a discounted cash price for people who pay cash. University of California Davis Medical Center posts its file, dated April 1, 2026, on its price transparency page, which links the price file itself. "IIC" is the hospital's own label in each row, and the rows bill these aids under the codes for CIC aids: V5254 for one aid, V5258 for a pair.

In the file, the Oticon Own 1 IIC is listed at $1,110 cash for one aid and $2,220 for a pair. Every amount below is the file's own, for the outpatient setting:

Model, as the file names itOne aid (V5254), cashOne aid, grossPair (V5258), cashPair, gross
Oticon Opn 1 IIC$999$2,497.50$1,998$4,995
Oticon Opn 2 IIC$706$1,765$1,412$3,530
Oticon Opn 3 IIC$470$1,175$940$2,350
Oticon Own 1 IIC$1,110$2,775$2,220$5,550
Oticon Own 2 IIC$760$1,900$1,520$3,800
Oticon Own 3 IIC$535$1,337.50$1,070$2,675
Oticon Own 4 IIC$425.25$1,063.13$850.50$2,126.25
Oticon Own 5 IIC$281.25$703.13$562.50$1,406.25
Oticon Siya 1 IIC$402.75$1,006.88$805.50$2,013.75
Oticon Siya 2 IIC$247.50$618.75$495$1,237.50
ReSound LiNX 3D 5 IIC$450$1,125$900$2,250
ReSound LiNX 3D 7 IIC$678$1,695
ReSound LiNX 3D 9 IIC$1,008$2,520$2,016$5,040

The file also lists a LiNX 3D 7 IIC pair, but under a different code, V5257, so we leave those two cells empty rather than place that row in a column it doesn't match. These are one hospital's listed charges as of its file date: not a national average, not a retail quote, and not what a plan pays. A row in a price file doesn't show that the model is still sold. The hospital can ask us to remove these rows in writing. What Medicare and Medicaid pay is on does Medicare cover hearing aids and does Medicaid cover hearing aids.

Cost, and the OTC line for canal-style aids

None of the dated maker price readings we hold names an IIC or CIC model, and the maker pages read for the table print no price; the dollar amounts in the section above are one hospital's listed charges, not maker prices. The national figure we hold is a range that a May 2024 GAO report relays for prescription hearing aids: $1,000 to $6,000 per pair, as reported, not an average. Costs by route and payer are on how much hearing aids cost.

A canal shape doesn't change the OTC rule. FDA's OTC category under 21 CFR 800.30 covers a "person age 18 or older to compensate for perceived mild to moderate hearing impairment", whatever the size of the aid; OTC hearing aids covers the rest of the rule.

Frequently asked questions

What is the most discreet hearing aid on the market?

No source we read measures visibility, so we name no single model. The makers' own claims differ: Phonak calls Lyric "the first and only 100% invisible hearing aid", Oticon says its IIC style "is truly invisible in 9 out of 10 ears", Phonak marks its Virto I-Titanium nearly invisible, and Signia calls its Insio IX IIC a tiny custom device. These are the makers' words, not test results.

What is the average cost of an invisible hearing aid?

We hold no average for invisible models, and no maker page we read prints an IIC price. One hospital's price file does list named IIC models: in UC Davis Medical Center's April 1, 2026 file, the cash price for one aid runs from $247.50 (Oticon Siya 2 IIC) to $1,110 (Oticon Own 1 IIC). That is one hospital's list, not an average. For prescription hearing aids in general, a May 2024 GAO report relays $1,000 to $6,000 per pair, as reported.

Does Medicare Medicaid pay for hearing aids?

Original Medicare doesn't: Medicare.gov says it doesn't cover hearing aids or the exams for fitting them. Some Medicare Advantage plans add a benefit: in CMS's 2026 plan benefit files, 94.6% of 5,599 plan segments list a mandatory prescription hearing aid benefit, each with its own caps and copays; that is a count of plan segments, not of people. For Medicaid enrollees under 21, the federal EPSDT rules include hearing aids. For adults, Medicaid coverage varies by state.

Sources

Styles, ranges and claims come from each maker's own US page, read in November 2026, quoted or paraphrased with attribution. The criterion was set before reading: a canal style or an invisible claim on the maker's page. No model was tried, measured or ranked. VA counts come from our archived copy of the VA Hearing Aids Procurement Distribution report, October 2025 to September 2026: every category worksheet of the custom, behind-the-ear and receiver-in-canal groups, blank totals counted as zero. Pages read for this version: Oticon, Phonak and Signia; other makers' pages were not read for this version.

  1. https://department.va.gov/procurement-acquisition-and-logistics/wp-content/uploads/sites/56/2026/10/CSAS_FY26Sept_VAHearingAidsProcurementDistribution202510-202609.xlsx
  2. https://www.cms.gov/files/zip/pbp-benefits-2026.zip
  3. https://www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-21?part=800&section=800.30
  4. https://www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-42?part=440&section=440.40
  5. https://www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-42?part=441&section=441.56
  6. https://www.gao.gov/products/gao-24-106854
  7. https://www.medicare.gov/coverage/hearing-aids
  8. https://www.oticon.com/solutions/own-in-the-ear-hearing-aids
  9. https://www.phonak.com/en-us/hearing-devices/hearing-aids/lyric
  10. https://www.phonak.com/en-us/hearing-devices/hearing-aids/virto-infinio
  11. https://www.signia.net/en-us/hearing-aids/types/

Cost and coverage research, not medical advice. A maker's range or visibility claim is not a recommendation: a hearing care professional chooses and fits a hearing aid from your hearing test.