510(k) · Cleared
ClearedPeace N Quiet (0.7.0)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Pnq Health · KLW Masker, Tinnitus
Cleared on Feb 27, 2024 as substantially equivalent to K161562 (Sound Options Tinnitus Treatments, Inc., 2016) after a 137-day review. Its family tree reaches back 7 generations to 1998.
- Decided
- Feb 27, 2024
- Review
- 137 days
- Class
- Class II
- Product code
- KLW
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 7 generations to K974501 (1998). 9 ancestors in all. No later device cites it as a predicate yet.
- Root · 7 generations backK974501 Digital Tinnitus Masking SystemPetroff Audio Technologies · 1998
- 6 generations backK030791 Anmp (Acoustic Neuro Modulation Protocol)Tinnitech, Ltd. · 2003
- 5 generations backK040330 QuiescenceSpectral Visualization & Development, Inc. · 2004
- 4 generations backK073636 Tinnitus Sound Generator ModuleGn Resound A/S · 2008
- 3 generations backK111293 Soundcure Serenade Tinnitus Treatment SystemSoundcure, Inc. · 2011
- 2 generations backK150065 SoundCure Serenade Tinnitus Treatment SystemSoundcure, Inc. · 2015
- 1 generation backK161562 Sound Options Tinnitus TreatmentSound Options Tinnitus Treatments, Inc. · 2016
- This deviceK233435 Peace N Quiet (0.7.0)Pnq Health · 2024
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −7 | K974501 | Digital Tinnitus Masking System | Petroff Audio Technologies | 1998 | — |
| −6 | K030791 | Anmp (Acoustic Neuro Modulation Protocol) | Tinnitech, Ltd. | 2003 | — |
| −5 | K040330 | Quiescence | Spectral Visualization & Development, Inc. | 2004 | — |
| −4 | K073636 | Tinnitus Sound Generator Module | Gn Resound A/S | 2008 | — |
| −3 | K111293 | Soundcure Serenade Tinnitus Treatment System | Soundcure, Inc. | 2011 | — |
| −2 | K150065 | SoundCure Serenade Tinnitus Treatment System | Soundcure, Inc. | 2015 | — |
| −1 | K161562 | Sound Options Tinnitus Treatment | Sound Options Tinnitus Treatments, Inc. | 2016 | — |
| 0 (this device) | K233435 | Peace N Quiet (0.7.0) | Pnq Health | 2024 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 2 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in KLW? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new KLW device
- #1 K260413 Levo Gen 2 Tinnitus Therapy Systemscore 11.8 · 1 generation · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 26 years and passes through 7 companies; a new generation was cleared every 3.6 years on median.
- None of the 9 ancestors has a recall.
How does its category compare?
All KLW devicesKLW Masker, Tinnitus: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.
FDA decisions per year · KLW
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · KLW
261in 2023
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KLW
No recall names KLW since 2007.
Adverse event reports per year · KLW
4in 2015
MAUDE reports naming product code KLW, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 2 | — | 0 | 1 |
| 2008 | 2 | — | 0 | 0 |
| 2009 | 2 | — | 0 | 1 |
| 2010 | 1 | — | 0 | 1 |
| 2011 | 4 | 58 | 0 | 1 |
| 2012 | 1 | — | 0 | 1 |
| 2013 | 4 | 150 | 0 | 0 |
| 2014 | 4 | 164 | 0 | 0 |
| 2015 | 4 | 107 | 0 | 4 |
| 2016 | 3 | 114 | 0 | 0 |
| 2017 | 2 | — | 0 | 0 |
| 2018 | 2 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 2 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 3 | 261 | 0 | 0 |
| 2024 | 1 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 2 | — | 0 | — |
What is it indicated for?
The Peace N Quiet device is indicated for use in the temporary relief of tinnitus symptoms. The device plays customized sounds to relieve patients suffering from tinnitus and can be used in a tinnitus management program. The target population is for patients who are 18 years or older. This device should only be used with the advice of a physician, audiologist or other hearing healthcare professional.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K233435 · printed Nov 4, 2026
Cite this page
510(k) Report. “K233435: Peace N Quiet (0.7.0).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K233435
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026