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Mental Performance · Toronto

Train the mind.
Measure the shift.

Harmonea. Three instruments. One system for breathwork, HRV training, and recovery, built for traders, athletes, coaches, founders, and anyone who measures what matters.

21Day Protocol
13+Biometrics
15,000+Members
Harmonea full stack, Board, Band, and Ring on dark slate
LIVE / HRVRMSSD 64ms · Coherence 0.78Synced from Harmony Band · 18s ago
The Collection · 03

Three instruments. One precision system for the mind.

Built around a single 21-day protocol. Each product is functional alone, together, they create a closed-loop training system.
The 21-day protocol in practice, standing on the Harmony Board at sunrise, wearing the Band
The Protocol

A 21-day system to retrain your nervous system.

Harmonea is built on a simple thesis: mental performance is a measurable, trainable skill. The 21-day protocol layers breathwork, HRV biofeedback, and sleep recovery, anchored by daily 8-minute sessions on the Board. The Band and Ring quietly measure the rest.

“By day fourteen, the board feels less like a product and more like a habit. The data backs it up.”

— Dr. Lena Voss, lead protocol researcher

Read the science
15,000+Registered Members
87%Report Measurable Improvement
21Day Protocol
140+In-Person Sessions
Harmony Board, Band, and Ring resting on a walnut nightstand
One scene · three instruments

Live with the stack.

The Full Stack · Bundle
Coming SoonThe Full Stack, walnut case

Board + Band + Ring.
One protocol. One price.

Board, Band, and Ring in one hand-finished case. The Full Stack launches when the Band and Ring arrive, save $88 versus buying each on its own.

$387$299Save $88