40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement: Audiobook
Book 1 of the Solfeggio Healing Frequencies Collection series
According to The Books Insider's catalog data, the 40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement audiobook runs 2.1 hours unabridged, narrated by The Hertz Archive (about 1.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 2.1 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 5 days |
| 1 hour / day | 3 days |
| 2 hours / day | 2 days |
| 1 hour / day at 1.5× | 2 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 2.1 hours, it is shorter than 60% of the 8,218 Mindfulness & Meditation audiobooks in our catalog.
Catching up on The Solfeggio Healing Frequencies Collection
This is book 1. Books 1 to 10 run 23.3 hours in all.
More narrated by The Hertz Archive
The Hertz Archive narrates 10 unabridged audiobooks in our catalog, 23 hours in all.
- 174 Hz: 2 Hours of Pure 174 Hz Frequency for Gentle Restoration and Harmonic Renewal
- 285 Hz: 2 Hours of Pure 285 Hz Frequency for Subtle Cellular Restoration and Gentle Renewal
- 396 Hz: 2 Hours of Pure 396 Hz Frequency for Emotional Release and Gentle Inner Reset
- 417 Hz: 2 Hours of Pure 417 Hz Frequency for Gentle Energetic Shift and Inner Realignment
- 528 Hz: 2 Hours of Pure 528 Hz Frequency for Heart-Centered Harmony and Gentle Emotional Alignment
About as long, on the Mindfulness & Meditation shelf
293 Mindfulness & Meditation audiobooks in our catalog run within 10% of this length. The most popular on the store:
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement is book 1 of The Hertz Archive's Solfeggio Healing Frequencies Collection series: a 2.1-hour unabridged recording, read by The Hertz Archive, released April 6, 2026, on the Mindfulness & Meditation and Disorders & Diseases shelves.
The listen at a glance
- Length
- 2.1 hrs
- Narrated by
- The Hertz Archive
- Released
- April 6, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mindfulness & Meditation, Disorders & Diseases
- Series
- The Solfeggio Healing Frequencies Collection #1
- ISBN
- 9798240048364
How to listen to 40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement free
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Start listening freeQuestions listeners ask
How long is the 40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement audiobook?
40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement runs 2.1 hours unabridged. At 1.5× speed that drops to roughly 1.4 hours.
Is the 40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates 40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement?
40 Hz: 2 Hours of Pure 40 Hz Gamma Frequency for Deep Focus and Extended Mental Engagement is narrated by The Hertz Archive.